Category Archives: Singapore Raptor Report

Singapore Raptor Report – January 2018

PF,-140118,-KM,-goh-Cheng-Teng,-crop

Peregrine Falcon, juvenile, at Kranji Marshes, on 14 Jan 2018, by Goh Cheng Teng

Summary for migrant species:

In January, 75 raptors of 9 migrant species were recorded. Apart from singles at Coney Island and Pasir Ris Park, a flock of 8 Jerdon’s Baza Aviceda jerdoni was recorded at Lorong Halus Wetlands on the 20th. The grey morph Oriental Scops Owl Otus sunia found on 9 Dec at Dairy Farm Nature Park was still around on 19 Jan. A juvenile Black Kite Milvus migrans (lineatus), a scarce migrant, was photographed at Bulim Avenue on the 15th and 21st.

A female Chinese Sparrowhawk Accipiter soloensis was still wintering at Ang Mo Kio, while another sub-adult female was photographed at Lorong Halus on the 20th. Only three Japanese Sparrowhawks Accipiter gularis were recorded: one at Sentosa on the 3rd, one at Tampines Eco Green on the 20th and another at Mount Faber on the 26th, all were juveniles.

Two Western Ospreys Pandion haliaetus were recorded, at the usual spots: one at Sungei Buloh – Kranji area and the other at Seletar Dam. Of the four Peregrine Falcons Falco peregrinus, one juvenile was at Pulau Ubin on the 7th, another juvenile at Jurong West also on the 7th, one at Sungei Buloh – Kranji area on multiple days, and the last one at Seletar Airport on the 27th.

For the Black Baza Aviceda leuphotes, up to 13 were in the Lorong Halus – Tampines area, 2 at Telok Blangah and another 5 at One North. Lastly, a total of 34 Oriental Honey Buzzards Pernis ptilorhyncus were recorded in January.

OHB, 020118, AMK, TErence Tan, torquatus tweeddale 2

Oriental Honey Buzzard, torquatus tweeddale morph, at Ang Mo Kio, on 2 Jan 2018, by Terence Tan.

Highlights for sedentary species:

January was a good month for the torquatus form of the Oriental Honey Buzzzard as four of these showed up, all of the tweeddale morph, one at Ang Mo Kio on the 2nd, one at Pasir Ris – Tampines area between the 2nd to 8th, one at Bukit Timah on the 18th, and one at Chinese Garden on the 31st.

The Crested Goshawk Accipiter trivirgatus pair at Sentosa was observed breaking off twigs for their nest and feeding on rodents at the beginning of the month; and as the leaves on the tree grew back, their nest high up the upper branches probably became more difficult to observe. Individuals were recorded at Pasir Ris, Mandai, and Telok Blangah, and another three at the Botanic Gardens.

The other sedentary raptors recorded included two Grey-headed Fish Eagle, two Black-winged Kites, nine Changeable Hawk-Eagles and the common White-bellied Sea Eagles and Brahminy Kites.

Table 1, revised

Addendum
Changes (highlighted in yellow) include additional records of 1 Brahminy Kite, 2 White-bellied Sea Eagles, 1 Grey-headed Fish Eagle, 2 Changeable Hawk-Eagles and 1 unidentified Accipiter.

For a pdf version (revised) with more details, please click Singapore Raptor Report – Jan 2018, revised

Compiled by Tan Gim Cheong  

Many thanks to everyone who had reported their sightings in one way or another, and also thanks  to Goh Cheng Teng and Terence Tan for the use of their photos.

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Singapore Raptor Report – December 2017

OHB, 081217, Sgp, Teo Chee Kee

Oriental Honey Buzzard, adult female dark morph, on 8 Dec 2017, by Teo Chee Kee.

Summary for migrant species:

December marked the arrival of two migrant raptor species. The first Eastern Marsh Harrier for the season, a juvenile, was photographed in flight at Kranji Marshes on the 2nd at 6:59am. This is fairly typical behaviour for the species as they are early movers. The first Black Kites of the season came in a group of three over Pulau Ubin on the 26th. The three juveniles were flying about over Pulau Sekudu and the nearby fish farms, probably hoping to scavenge.

The rufous morph Oriental Scops Owl found on 30 November at Dairy Farm Nature Park was still around on the 1st, but disappeared thereafter. On the 9th, a grey morph Oriental Scops Owl was found roosting high up a nearby tree; it was recorded again on the 11th and the 17th at the same locality. This grey morph individual might also have been the same one found in January this year, returning to the same locality in Singapore after breeding in the northern latitudes!

Three Jerdon’s Bazas were recorded. One frequented the Tampines Eco Green to Pasir Ris Park area throughout the month; another was recorded at Ang Mo Kio Town Garden West on the 10th and 11th; and the last one flew by Jelutong Tower on the 22nd. Two Common Buzzards were recorded; the first was photographed on the 2nd at Seletar Aerospace Drive; on the 6th, 2 birds were photographed at nearby Seletar West, and one of the birds may have been the same bird first recorded on the 2nd.

Five Chinese Sparrowhawks were recorded. A male at Pasir Ris Park on the 3rd and 9th; a female at Ang Mo Kio Town Garden West on the 9th, two over Henderson Wave on the 20th, and a female at Sentosa on the 24th. Two Peregrine Falcons were recorded; one at Clementi and the other at Seletar Airport area. Three Western Ospreys were recorded; one at SBWR-Kranji Marshes area, another at Yishun Dam and the last at Pasir Ris Park.

Finally, we come to the most abundant migrant raptors. 19 Japanese Sparrowhawks were recorded; a number of them at Henderson Waves, probably just passing through for destinations further south. 20 Black Bazas were recorded, and a small group is probably wintering at Pasir Ris Park. The Oriental Honey Buzzard is tops again with 93 birds; a number were recorded at Henderson wave, also probably just passing through on their way farther south.

Crested Goshawk (Accipiter Trivirgatus), 281217, Sentosa, Michael Phua

Crested Goshawks mating, at Sentosa, on 28 Dec 2017, by Michael Phua.

Highlights for sedentary species:

For the uncommon Crested Goshawk, 11 birds were recorded. Notably the pair at Sentosa was observed mating on four days: the 24th, 25th, 26th and 28th. The pair was observed bringing small branches to reinforce their nest high up the bare tree and on the 25th, the female goshawk was photographed breaking a small branch with its beak. A juvenile goshawk, probably from the pair’s last breeding attempt, was also seen at the tree on the 24th.

All three records of the torquatus Oriental Honey Buzzards were of the tweeddale form. An adult male was recorded at Pasir Ris Park on the 15th, the record on the 21st was probably of the same individual. Another was recorded at Toa Payoh on the 17th.

Of the two Grey-headed Fish Eagles recorded, one was at Bishan Park and the other at Little Guilin, where a new nest had been built on a tall tree but nesting was not observed during the month. The other resident raptors recorded included the Changeable Hawk Eagle, Brahminy Kite and White-bellied Sea Eagle.

Table 1

Compiled by Tan Gim Cheong 

Many thanks to everyone who had reported their sightings in one way or another, and especially to Teo Chee Kee and Michael Phua for the use of their photos.

For a pdf version with more details, please click Singapore Raptor Report – Dec 2017

 

Singapore Raptor Report – November 2017

Besra, 181117, posted 051217, Telok Blangah, Les Sail

Besra, juvenile, at Telok Blangah Hill on 18 Nov 2017, by Leslie Fung.

Summary for migrant species:

November 2017 turned out to be the best month ever for migrant raptor diversity, with 18 migrant species recorded! This is in huge contrast to last month, which was noted to be “the least remarkable October on record, with only 6 migrant species recorded”! The raptors seem to be making it up for a lacklustre October.

An incredible number of ‘megas’ (birding speak for very rare birds) were recorded, complete with photographic evidence. On 18 November, Leslie Fung and Diana Jackson photographed an accipiter which looked superficially like a Japanese Sparrowhawk in flight, but was in fact a juvenile Besra, one of the ‘megas’, and one which is amongst the most difficult to identify. A report of a Besra on the 10th turned out to be a Japanese Sparrowhawk, underscoring the difficulties in identification.

26 November must surely be a magical day for a few photographers who were richly rewarded for their efforts out in the field. Francis Yap’s vigil at Henderson Waves paid off handsomely with a Eurasian Sparrowhawk, another mega, and only the third occurrence of this species in Singapore. At the eastern end of Singapore, on the new Tanah Merah Coast Road, Adrian Silas Tay, Goh Cheng Teng, et al, made special efforts to get to this stretch of road where kerbside parking is not allowed and managed to photograph an Amur Falcon! Another mega, and also the third occurrence of the species in Singapore.

Eurasian Sparrowhawk, 261117, Henderson Wave, Francis Yap, 1004h
Eurasian Sparrowhawk, 26 Nov 2017, Henderson Waves, by Francis Yap

On 8 November, Terence Tan chanced upon a Northern Boobook in daylight at Satay by the Bay and obtained a beautiful set of images of this rarely encountered nocturnal bird of prey.

Northern Boobook, 081117, SBTB, Terence Tan 3

Northern Boobook, 8 Nov 2017, Satay by the Bay, by Terence Tan

Just as the month came to a close, Khoo MeiLin and Tsang Kwok Choong found a rufous morph Oriental Scops Owl roosting at Dairy Farm Nature Park in the daytime. This particular individual might have been the same one found in January this year, returning to the same tree in Singapore after breeding in the northern latitudes!

OSO, 301117, DFNP, KC Tsang

Oriental Scops Owl, rufous morph, 30 Nov 2017, Dairy Farm Nature Park, by KC Tsang

On the 11th, a juvenile Greater Spotted Eagle, a rarity, flew by Henderson Waves, giving cheer to a bunch of birders who must have temporarily forgotten about being roasted under the sun!

GSE, 111117, Henderson Waves, Adrian Silas Tay

Greater Spotted Eagle, juvenile, 11 Nov 2017, Henderson Waves, by Adrian Silas Tay

The rare Pied Harrier was photographed at Henderson Waves by Francis Yap on the 15th (a juvenile), recorded at Kranji Marshes by Martin Kennewell on the 18th (immature) and at Pulau Semaukau by Saket Sarupria on the 28th (adult male).

Pied Harrier, 151117 1305h, TBHP CP2, Fryap

Pied Harrier, juvenile, 15 Nov 2017, Henderson Waves, by Francis Yap

On the 13th, a dark morph Booted Eagle was spotted at Henderson Waves during the hottest part of the day, flying southeast initially and then turning northeast, perhaps deciding that it was not going to cross the seas to the south.

Booted Eagle, 131117, HW, TGC

Booted Eagle, dark morph, 13 Nov 2017, Henderson Waves, by Tan Gim Cheong

The Jerdon’s Baza, a good bird for many birders, was recorded on three dates, singles on 12th and 14th at Henderson Waves, both in the afternoon, and the third one at Pasir Ris on the 25th.

Jerdon Baza, 251117, PRP CP B, Jeremy Ong

Jerdon’s Baza, at Pasir Ris Park on 25 Nov 2017, by Jeremy Ong.

The rather uncommon Grey-faced Buzzard was recorded at Henderson Waves on 2nd, 5th, 11th and 19th, all singly except for 2 birds on the 5th, and another 2 recorded at Sisters Island / St John’s Island area on the 4th.

Grey-faced Buzzard, 041117, St John Island, Adrian Silas Tay

Grey-faced Buzzard, 4 Nov 2017, near St John’s Island, by Adrian Silas Tay

The uncommon Common Buzzard was photographed on the 2nd, 19th and 25th, all being singles in flight at Henderson Waves.

Common Buzzard, 251117, HW, STYW

Common Buzzard, 25 Nov 2017, Henderson Waves, by See Toh Yew Wai

Another uncommon raptor despite its name, the Common Kestrel was photographed at the new Tanah Merah Coast Road on the 26th.

Common Kestrel, 261117, new Changi Coast Rd, Goh Cheng Teng
Common Kestrel, 26 Nov 2017, Tanah Merah Coast Road, by Goh Cheng Teng

Twenty two Chinese Sparrowhawks were recorded, many of them over Henderson Waves, while one adult female seemed to be wintering at Ang Mo Kio. Five Peregrine Falcons and four Western Ospreys were also recorded.

BB w prey, 231117, PRP, Heather Goessel 2

Black Baza, feeding on a grasshopper, 23 Nov 2017, Pasir Ris Park, by Heather Goessel

Finally, we come to the most abundant migrant raptors. 129 Japanese Sparrowhawks were recorded, many of them at Henderson Waves, this season’s hotspot. The Black Bazas showed quite a bit, from zero birds last month to 375 birds this month, with a day high of 127 birds on the 12th at Henderson Waves. Heather Goessel had a lucky encounter with one feeding on what appeared to be a grasshopper, at Pasir Ris Park. The Oriental Honey Buzzard is tops again with 531 birds, including a flock of 74 at Henderson Waves and a flock of 61 at Tuas, both on the 11th.

OHB, 151117, HW, Fryap

Oriental Honey Buzzard, juvenile, 15 Nov 2017, Henderson Waves, by Francis Yap

Highlights for sedentary species:

The locally rare Crested Serpent Eagle was recorded three times at the Kent Ridge / Henderson Waves area with a max of 2 birds, plus another one at Pulau Tekong on 23rd morning. For the uncommon Crested Goshawk, 3 juveniles were recorded, one at the Southern Ridges, one at MacRitchie and one at Pasir Ris; among the 5 adults, a pair was observed mating at the Botanic Gardens on the 18th.

All five records of the torquatus Oriental Honey Buzzards at three localities were of the tweeddale form, with at least one female at Satay by the Bay and one male at Pasir Ris Park, the last locality being the Jelutong Tower. A Grey-headed Fish Eagle was recorded at Sentosa on the 16th, the other 6 were found at its usual haunts – Kranji, Little Guilin, Botanic Gardens and in flight over Henderson Waves.

A juvenile dark morph Changeable Hawk Eagle was seen calling, seemingly for the adult dark morph nearby, at Jalan Kayu on the 16th, indicating that the young hawk-eagle had recently fledged. Unfortunately, a juvenile pale morph did not make it, as its fresh carcass was found at Clarke Quay on 25th morning, apparently a victim of collision with a building or window. The other resident raptors recorded included the Black-winged Kite, Brahminy Kite and White-bellied Sea Eagle.

There are also additional records for October 2017, please refer to the PDF below.

Many thanks to everyone who had reported their sightings in one way or another, and especially to Leslie Fung, Jeremy Ong, Heather Goessel, Francis Yap, Adrian Silas Tay, See Toh Yew Wai, Goh Cheng Teng, Tsang Kwok Choong, and Terence Tan for the use of their photos.

Compiled by Tan Gim Cheong

For a pdf version of the report with detailed lists (including additional records for October 2017), please click here Singapore Raptor Report – November 2017

 

10th Singapore Raptor Watch Report

Autumn 2017 Migration – 5 Nov 2017
compiled by TAN Gim Cheong
CSH, Puaka, Jacky Soh, crop

Chinese Sparrowhawk, juvenile, at Puaka Hill, Pulau Ubin, 5 Nov 2017, by Jacky Soh

The 10th Singapore raptor watch was held on Sunday, 5 November 2017 and involved 65 participants. Apart from a bit of drizzle at the start of the day, the weather was fine. There were 8 raptor watch sites and the numbers counted at each site varied from a high of 289 to a low of 21 birds. A total of 781 raptors were counted, including 567 raptors representing 7 migrant species and 113 raptors of 7 resident species. A further 101 raptors could not be identified to species level.

Summary:
Number of raptors – 781
– 567 migrant raptors.
– 113 resident raptors.
– 101 un-identified raptors.

 Number of species – 14
 – 7 migrant species.
– 7 resident species.

Fiigure 1

Seven of the sites were the same ones as previous years, thanks to all the site leaders for their faithful support!  The minor changes were the shift of the Tuas site slightly north to Tuas South Avenue 12 due to construction works at Tuas South Avenue 16, and the addition of Marina Barrage.

Fiigure 2

After a slow start in the morning, with less than 20 birds each in the first three 1-hour periods (probably due to the drizzle), the numbers of migrant raptors surged to 224 birds in the 12pm-1pm period, then dropping gradually, to 146 birds in the next hour, 80 in the following hour and 60 in the last hour of the count.

Fiigure 3

The Black Baza reclaimed the top spot, a position it last held in 2009, with 252 birds counted. The largest number of Black Bazas were at Kent Ridge Park (148 birds), Telok Blangah Hill Park (36 birds) and Pulau Ubin (28 birds). The largest groups were a flock of 61 birds at 12:29pm and another flock of 60 between 1pm-2pm, both at Kent Ridge Park.  As for the Oriental Honey Buzzard (OHB), after 7 years as the most numerous migrant raptor during our Raptor Watch, it dropped to second place with 166 birds counted. The largest number of OHBs were at Kent Ridge Park (57 birds), Japanese Garden (45 birds) and Telok Blangah Hill Park (32 birds).

BB, Puaka, Jacky Soh, crop

Black Baza, at Puaka Hill, Pulau Ubin, 5 Nov 2017, by Jacky Soh

The Japanese Sparrowhawks come out in force, with 126 birds, almost double its previous high of 67 birds in 2014. The main bulk of the Japanese Sparrowhawks (65 birds) were counted at, coincidentally, the Japanese Garden! There were 18 Chinese Sparrowhawks, and most of them (14 birds) were recorded at Puaka Hill, Pulau Ubin. Only two Western Ospreys were recorded – one at Japanese Garden and the other at Puaka Hilll, Pulau Ubin. For the uncommon Common Buzzard, two were recorded at Lorong Halus Wetlands between 12pm-1pm. A single Peregrine Falcon was recorded at Kent Ridge Park at 3:10pm.

JSH, Puaka, Jacky Soh, crop

Japanese Sparrowhawk, juvenile, at Puaka Hill, Pulau Ubin, 5 Nov 2017, by Jacky Soh

Fiigure 4

For the resident species, the total count was 113 birds of 7 species, one more species than the year before – the addition being the Crested Serpent Eagle. The count for the resident raptors comprised 53 Brahminy Kites, 33 White-bellied Sea Eagles, 16 Changeable Hawk Eagles, 5 Grey-headed Fish Eagles, 4 Crested Goshawks, 1 Black-winged Kite and 1 Crested Serpent Eagle.

Fiigure 5

The figure below provides a snapshot of the number of raptors according to the three categories – migrant, un-identified & resident raptors, at the 8 sites. A larger proportion of the migrant raptors were detected in the southwest stretch from the Japanese Garden to Kent Ridge Park to Telok Blangah Hill Park, with a peak of 229 migrant raptors at Kent Ridge. The highest number of un-identified raptors, also at Kent Ridge, were probably migrants flying too high for positive identification. Rather surprising was the low numbers at Tuas. Could the birds have avoided that area due to the ongoing constructions works?

Fiigure 6

A complete breakdown of the species counted at each site is shown in the table below:

Fiigure 7

Thanks to all the 65 wonderful birders, both leaders and participants, which included National Parks Board staff, for spending their Sunday out in the open to count raptors. The following fantastic people led or assisted in the raptor count:

Fig names

KRP afternoon shift, Ee Ling

The ‘afternoon shift’ of raptor watchers/counters at Kent Ridge Park, by Lee Ee Ling

Thanks to Jacky Soh and Lee Ee Ling for the use of their photos.

Please click here for a pdf version 10th Singapore Raptor Watch – 2017

Singapore Raptor Report – October 2017

Accipiter, 251017, Jelutong, Fryap

Japanese Sparrowhawk, juvenile, at Jelutong Tower on 25 Oct 2017, by Francis Yap. Interestingly, this individual has dark and pale tailbands that appear equal in width, the most commonly held criteria for Besra. However, other features such as short tail, long primary projection, weak mesial stripe and weak chest markings point to Japanese Sparrowhawk. A good reminder that identification cannot be based on a single feature alone.

Summary for migrant species:

October 2017 is probably the least remarkable October on record, with only 6 migrant species recorded (we usually record around 9 species in October). For the second year in a row, there were no records of the Black Baza in October, not that they no longer come to Singapore, just that they arrive only later in the year.

The bulk of the 70 migrants recorded were made up by the 33 Oriental Honey Buzzards, and 25 Japanese Sparrowhawks. There were 8 Chinese Sparrowhawks, including one female spotted regularly at Ang Mo Kio. Two Western Ospreys were recorded at the Kranji-Sungei Buloh area and one adult Peregrine Falcon was recorded at Kent Ridge on the 3rd. The single juvenile Eastern Marsh Harrier at Mount Faber on the 3rd was a notable record.

Crested Goshawk mating, 271017, Ang Mo Kio, Seah Han Wah

A pair of Crested Goshawks mating, at Ang Mo Kio on 27 Oct 2017, by Seah Han Wah. Note the small dark droplet-shaped markings on a rather clean white breast of the female (below) versus the bigger rufous-brown patches on the breast of the male (above).

Highlights for sedentary species:

The locally rare Crested Serpent Eagle was recorded twice at Kent Ridge this month, on the third and the 12th. As for the uncommon Crested Goshawk, a pair was observed mating at Ang Mo Kio; another 4 adults were recorded at Kent Ridge and the Botanic Gardens; and a juvenile at Bidadari, honing its skills at hunting, using a Variable Squirrel as target. Amazingly, all the four records of the torquatus Oriental Honey Buzzards were of the tweeddale form, with at least one female and one juvenile – one at Toa Payoh on 3rd, a female at Jelutong Tower on 7th, a juvenile at Jelutong Tower on 22nd, and a female at Old Upper Thomson on 29th. The other resident raptors recorded included the Grey-headed Fish Eagle, Black-winged Kite, Brahminy Kite and White-bellied Sea Eagle.

Table 1

Many thanks to everyone who had reported their sightings in one way or another, and especially to Francis Yap and Seah Han Wah for the use of their photos.

Compiled by Tan Gim Cheong

For a pdf version with more details please click Singapore Raptor Report – October 2017

 

Singapore Raptor Report, July-September 2017

PF, 170817, Ubin, Xu Weiting

Peregrine Falcon (ernesti subspecies), at Pulau Ubin, 17 August 2017, by Xu Weiting

Summary:

The Osprey, Oriental Honey Buzzard, Japanese Sparrowhawk, Chinese Sparrowhawk and Peregrine Falcon were recorded during the July to September period. The Osprey was recorded in small numbers all 3 months, at the Kranji-Mandai and Yishun Dam areas. The 5 Oriental Honey Buzzards recorded from 13 July to 6 September are more likely to have stayed for the summer; and the first autumn arrival was on 24 September at Lorong Halus, followed by another on 25 September at Bidadari and small flocks on 30 September at Tuas. A torquatus Oriental Honey Buzzard tweeddale morph was photographed at Toa Payoh on 30 September.

The first arrival of the Japanese Sparrowhawk was on 24 September at Lorong Halus (3 birds), followed by singles at Bidadari and Jelutong Tower before the month ended. The first arrival of the Chinese Sparrowhawk was also on 24 September at Lorong Halus (2 birds), followed by an individual at Jelutong Tower later on. A Peregrine Falcon (ernesti subspecies) was recorded at Pulau Ubin on 17 August; another reported from the 39th floor of OCBC Building on 24 August was also seen feeding on feral pigeons on previous occasions.

CHE, 030917, Springleaf, Laurence Eu, 3DX_3089

A Changeable Hawk-eagle, adult pale morph, at Springleaf, 3 Sep 2017, by Laurence Eu

For the resident raptors, highlights included the locally rare Crested Serpent Eagle on 13 July at South Buona Vista Road. On 18 August at Little Guilin, a juvenile Grey-headed Fish Eagle was observed whining constantly in the presence of an adult, but just 2 weeks later, on 1 September, the adults were seen building a new nest on a tall tree.

A juvenile Crested Goshawk was recorded at Pasir Ris Park on 13 July, and Changi Village on 10 September, with a shrew in its talons; adults were recorded on 17 August at Kent Ridge Park, 21 August at Aljunied (2 birds), and 7 September at Sentosa, with a Plantain Squirrel in its talons. The Black-winged Kite was recorded on 9 July at Kranji Marsh, 10 July at Punggol Barat (2 birds) and 20 August at Changi Point Ferry Terminal. A Changeable Hawk-eagle which probably fledged sometime in June or earlier was seen on the nest at Dairy Farm area on 1 July and 15 July, maybe it was ‘homesick’.

Many thanks to everyone for their records and to Xu Weiting and Laurence Eu for the use of their photos.

Compiled by Tan Gim Cheong 

For a pdf version with more details pleas click Singapore Raptor Report, Early Autumn Migration, Jul-Sep 2017

 

Singapore Raptor Report – Late Spring Migration, April-June 2017

Jap SH, m, 250617, PRP CP C, Kozi Ichiyama, (informed by Fryap) crop

Japanese Sparrowhawk, male, at Pasir Ris Park, 25 June 2017, a new and amazingly late date for the species, by Kozi Ichiyama.

Summary:

Four migrant raptor species were recorded in the April to June period. They were the Osprey, Oriental Honey-buzzard, Japanese Sparrowhawk and Peregrine Falcon, all of which were also recorded during last year’s late spring migration.

The most amazing record must have been the Japanese Sparrowhawk photographed on 25th June at Pasir Ris Park by Kozi Ichiyama. This is a full month beyond the extreme date (25 May) in An Annotated Checklist of the Birds of Singapore and well beyond that in The Avifauna of Singapore (1 May). Elsewhere, singles of the Japanese Sparrowhawk were recorded at Bukit Timah and Kranji up to mid April, followed by 2 birds –  a male and a female – flying north at Punggol Barat on 16th April.

Of the 18 Oriental Honey Buzzards recorded, 1 was of the torquatus race and at least 12 were of the orientalis race. Of the orientalis race, 10 were juveniles or second calendar year birds – 4 of these young birds were recorded in April, 2 in May and 4 in June. There were also 2 adult orientalis in April. On 25 April, a young OHB was chased away from the tree where it had perched by a resident Grey-headed Fish Eagle. A single torquatus was recorded from April to June at the Bishan-Ang Mo Kio area.

A single Osprey was recorded at the Kranji-Sungei Buloh area from April to June, and another at Seletar in May. Two Peregrine Falcons were recorded, one at Church Street (migratory race) in April and another at Hindhede in May.

Sedentary Raptors

A Crested Serpent Eagle on 2nd April at Pulau Ubin was the only record of this rare raptor during this 3-month period. For the Grey-headed Fish Eagle, there were 3 at the Kranji-Sungei Buloh area, 2 at the Botanic Gardens, 2 at the Ubin-Changi area, 1 at Bukit Timah area and 1 at Jurong Lake. Small numbers (up to 3 together) of the Black-winged Kite were record at the Kranji-Sungei Buloh area and at the Punggol-Seletar area in all 3 months.

Two nestings of the White-bellied Sea Eagle were observed during this period, one at Pasir Ris (2 chicks) and another at West Coast Park (at least 1 chick). Elsewhere, this common raptor was observed in many areas, with up to 6 birds at any one time. For the Crested Goshawk, there was another successful nesting, with 2 chicks, at the Singapore Botanic Gardens during this 3-month period. Elsewhere, apart from 3 birds calling at West Coast Park on 1st June, all other records were mostly of single birds.

The common Brahminy Kite was recorded in all 3 months and a max of 18 was recorded at Kranji Marsh in April. For the uncommon Changeable Hawk Eagle, records were mostly singles, mainly from the Central Forest areas, Kranji-Sungei Buloh and Simpang Kiri-Punggol stretch. 

addendum to March Raptor Report
2 adults and 1 juvenile Grey-headed Fish Eagle, which was being fed, at Little Guilin was recorded on 27 March 2017 by Keita Sin.

For a pdf version with more details, please click Singapore Raptor Report, Late Spring Migration, Apr-Jun 2017

Many thanks to everyone who had reported their sightings in one way or another, and especially to Kozi Ichiyama for the use of his photo.

Singapore Raptor Report – March 2017

OHB cover

Oriental Honey Buzzard, pale morph (left) at Alexandra Road on 9 Mar 2017 & dark morph (right) on at the Botanic Gardens on 18 Mar 2017, both by Laurence Eu.

Summary for migrant species:

In March, 176 raptors of 8 migrant species were recorded. The Black Baza was the most numerous with 70 birds, of which 39 were recorded at the Kranji Marshes on the 4th and another 20 at the National University of Singapore (NUS) on the 20th. The Oriental Honey Buzzard, with 54 birds, was the next in line and 11 were recorded at the NUS on the 21st, all heading north. Of the 32 Japanese Sparrowhawks recorded, 11 were seen at the NUS on the 22nd.

Ten Chinese Sparrowhawks were recorded this month, good numbers for this uncommon migrant. Apart from one bird at Jelutong Tower, the other nine were all recorded at the NUS. Four Ospreys were recorded, at the Seletar Dam and Sungei Buloh – Kranji Marshes areas. On the 9th, one Osprey at Sungei Buloh had its catch stolen by a White-bellied Sea Eagle. Four Peregrine Falcons were recorded; none of the resident race.

A Grey-faced Buzzard at Kranji Marshes on the 19th was a very good record for this rather uncommon migrant.  Lastly, an Oriental Scops Owl, unfortunately, flew into a glass panel at the NUS on the 9th.

CGH,-180317,-SBTB,-Saravanan,-w

Crested Goshawk, juvenile, feeding on a young Monitor Lizard, at Satay by the Bay, 18 Mar 2017, by Saravanan Krishnamurthy

Highlights for sedentary species:

A huge nest on a tall tree at Pasir Ris holding two young chicks of the White-bellied Sea Eagle was reported on the 3rd. At the Botanic Gardens, the Crested Goshawk pair was seen mating on the 7th and reinforcing their nest with sticks, around one month after their first brood of chicks had fledged. Over at Punggol, the Black-winged Kites were seen mating on the 18th, also about a month after their chick had fledged.

As for the Grey-headed Fish Eagle, there were records from Kranji Marshes (4th & 5th), Sungei Serangoon (5th) and Seletar (19th) but none from Little Guilin, where it was reported on the 7th that the nest tree had fallen. A rare Crested Serpent Eagle was recorded at Pulau Ubin on the 12th. At Sungei Buloh Wetland Reserve on the 17th, a juvenile pale morph Changeable Hawk-Eagle was seen raiding the nest of a Striated Heron and flying off with a chick in its talons. A loose flock of 17 Brahminy Kites was reported at Kranji Marshes on the 5th. Lastly, a torquatus tweeddale morph Oriental Honey Buzzard was recorded at Pasir Ris Park on the 2nd and another juvenile torquatus tweeddale moph at Jelutong Tower on the 26th.

Table 1

Addendum to February 2017 Singapore Raptor Report:

A rufous morph Oriental Scops Owls (OSO) was recorded at Dairy Farm Nature Park in a well concealed position on 10 Feb 2017, by Keita Sin (Note: two OSO – a grey and a rufous morph – were reported at the same locality from 10 to 22 Jan 2017). Additional records on 19 Feb 2017 at Kranji Marshes: 4 Black Bazas, 1 Brahminy Kite, 1 White-bellied Sea Eagle, 1 Grey-headed Fish Eagle, plus 4 un-identified raptors, suspected to be Oriental Honey Buzzards, all recorded by Henrietta Woo.  

For a pdf version with more details, please click Singapore Raptor Report – Mar 2017

Many thanks to everyone who had reported their sightings in one way or another, and especially to Laurence Eu and Saravanan Krishnamurthy for the use of their photos.

Singapore Raptor Report – February 2017

TGC_4374,-Chinese-Sparrowhawk,-female

Chinese Sparrowhawk, adult female, Ang Mo Kio, 17 Feb 2017, by Tan Gim Cheong.

Summary for migrant species:

In February, 66 individuals of 7 migrant species were recorded. While the 26 Oriental Honey Buzzards were similar to last February’s numbers, the 19 Black Bazas represented a drop of more than half compared to last February. All the Black Bazas were recorded at the Punggol – Pasir Ris – Tampines area. Six Jerdon’s Baza were recorded, five at Punggol on the 4th and one at Pasir Ris Park on the 12th, good numbers for this species.

Jerdon's Baza, 040217, Punggol East, Danny Lau, another bird

Jerdon’s Baza, Punggol East, 4 Feb 2017, by Danny Lau.

Of the six Peregrine Falcons recorded, two adults were photographed fighting at Seletar Airport vicinity on the 27th. Three Japanese Sparrowhawks were recorded; two of them, adult males, on the 6th at Changi Business Park and 10th at Bidadari, showed signs of moult, similar to what was observed last February, and had only 4 ‘fingers’ instead of the usual 5 ‘fingers’. Five Ospreys were recorded, including three over Bukit Timah Hill on the 20th. Two Chinese Sparrowhawks were recorded, one at Kent Ridge Park on the 2nd and another, an adult female, at Ang Mo Kio on the 5th, 17th and 19th.

CSE,-100217,-Kent-Ridge,-Gavan-Leong-(3rd-yr-burmanicus,-Chaiyan),-DSC_2596,-original,-w

Crested Serpent Eagle, 3rd year burmanicus, Kent Ridge Park, 10 Feb 2017, by Gavan Leong

A Crested Serpent Eagle photographed at Kent Ridge Park on the 10th by Gavan Leong turned out to be a 3rd year burmanicus, thanks to Dr Chaiyan for his expertise. This is the second occurrence of the burmanicus form, a short distance migrant from Indo-China, to Singapore. The previous record was in September and November 2014 when an individual was photographed at the Japanese Gardens. Ferguson-Lees & Christie (2001) indicates that malayensis is distinctly smaller than adjacent burmanicus, cheeks and throat darker brown, underparts more clearly spotted and barred white. Birders are encouraged to photograph any Crested Serpent Eagle encountered and post them online for identification of subspecies.

TGC_3919,-Crested-Goshawk

Crested Goshawk, fledgling, exercising its wings, Ang Mo Kio, 17 Feb 2017, by Tan Gim Cheong.

Highlights for sedentary species:

This month, there were significant developments for the Crested Goshawk, an uncommon resident. Not one, but four separate nestings were reported, with a total of 8 chicks fledging from the nests. Unfortunately, the Bedok North nesting suffered 2 misfortunes. First, the male was found dead on the roadside when the chicks were still on the nest. Fortunately, prey (mainly Javan Myna and rats) is plentiful in the area and the female was able to raise the 2 chicks on her own until they fledged. The second misfortune was the removal of one of the Bedok North chicks from the mother on the day of fledging, brought to a vet the next day, given a clean bill of health and released back into the wild on the same day at an unspecified location, to fend for itself. This was due to a series of well-intended human actions which may not have been appropriate. Considering that the remaining fledgling continued to be fed by its mother for another 2 weeks, it would probably be miraculas for the solitary fledgling to survive on its own. The four nestings, together with a few other sightings elsewhere, brought the tally of the Crested Goshawk to an all time high of 19 birds.

Other nesting records included the Black-winged Kite at Pulau Punggol on the 18th, with one chick seemingly ready to fledge; the White-bellied Sea Eagle at Pasir Ris on the 26th, with 2 young chicks still covered in white down feathers; and a Grey-headed Fish Eagle on its nest at Jurong. An adult torquatus tweeddale morph Oriental Honey Buzzzard was photographed at Pasir Ris Park on the 14th and 28th. The Brahminy Kite and Changeable Hawk-Eagle completed the roundup for the month.

Table 1

Many thanks to everyone who had reported their sightings in one way or another, and especially to Danny Lau and Gavan Leong for the use of their photos.

For a pdf version, please click here Singapore Raptor Report – Feb 2017

 

 

Migrant Raptors 2016 – the Year in Review

TGC_4323-Imperial-Eagle-mobbed-pano

Eastern Imperial Eagle being chased by House Crows, Pulau Ubin, 27 Dec 2016, by Tan Gim Cheong

A total of 1,623 records of migrant raptors spanning 21 species were obtained in the year 2016. The Oriental Honey Buzzard topped the chart with 1,200 records. The Black Baza was a distant second with 178 records, followed by the Japanese Sparrowhawk with 125 records.

Dropping down to double digits, there were 31 records of the Osprey, 27 for the Peregrine Falcon, and 22 for the Chinese Sparrowhawks. Do note that the Osprey comprise winter visitors and non-breeding visitors and the same few birds may have been recorded month after month. The Peregrine Falcon comprise a mix of winter visitors and passage migrants, while a greater percentage of Chinese Sparrowhawks are passage migrants.

In the single digits (consider yourself very lucky if you had seen these !), there were the Booted Eagle & Jerdon’s Baza with 7 records; the Common Kestrel with 5 records; the Rufous-bellied Hawk-Eagle with 4 records; the Northern Boobook & Common Buzzard with 3 records; and the Eastern Marsh Harrier & Black Kite with 2 records.

Now for the single records (it’s like striking lottery, isn’t it?), there was the Amur Falcon, Eurasian Sparrowhawk, Grey-faced Buzzard, Pied Harrier, Oriental Scops Owl, Eastern Imperial Eagle, and the huge Himalayan Vulture.

yir-1

The monthly distribution of the raptors is shown below:

yir-2

Monthly species diversity picks up in October and tapers off from March onward:

yir 3.JPG

Distribution of OHB in the year, they should be passing through in the opposite direction in the month of March (anyone out there now?) :

ohb

Distribution of Black Baza in the year:

Black Baza

Distribution of Japanese Sparrowhawk in the year:

JSH

Distribution of Osprey in the year:

osprey

Distribution of Peregrine Falcon in the year:

Peregrine

Distribution of Chinese Sparrowhawk in the year:

CSH.JPG

Rare records of 8 species, (start looking in October) :

rare(2-7)

Single records of 7 species, December was the best month for the rarities:

rare (1)