Showing posts with label Common Tern. Show all posts
Showing posts with label Common Tern. Show all posts

Saturday, October 13, 2018

Singapore Strait 13Oct18

From KH

Danny, JS and I joined this pelagic trip organised by Martin. The tern numbers were still good, but the storm-petrel numbers have dropped significantly.

We counted 24 Aleutian Terns! Here are some of them:


Bridled Tern swallowing fish while in flight.


The one and only Common Tern on this trip - of the longipennis subspecies.


Yellow for Great Crested Tern and orange for Lesser Crested Tern.


Swinhoe's Storm-petrel resting on the sea.


  1. 24 dark swiftlet sp.
  2. 116 Bridled Tern
  3. 24 Aleutian Tern
  4. 1 Little Tern
  5. 1 Common Tern
  6. 54 Great Crested Tern
  7. 20 Lesser Crested Tern
  8. 16 Swinhoe's Storm-Petrel
  9. 1 Little Egret
  10. 15 white egret sp.
  11. 1 Gray Heron
  12. 2 Brahminy Kite
  13. 2 White-bellied Sea-Eagle
  14. 13 Barn Swallow

Sunday, May 28, 2017

Singapore Strait 06May17

From JS
Facing stormy weather from the west, we headed out into the Straits of Singapore. Unlike last Saturday's outing, we had a mission to find a Swinhoe's Storm-petrel for Subaraj's client. Of course, the mission is only binding to Subaraj. We were just interested to find any birds that are passing through our waters.

We had a great start when Frank spotted an all-dark bird flying in the distance. Photos captured revealed a Short-tailed/Sooty Shearwater.


Next, we saw feeding Little Terns everywhere we go.

Just when things was starting to get quiet, we spotted four dark blobs on the water aka sitting ducks. It must a relief for Subaraj when the birds turned out to be Swinhoe's Storm-petrels. Great! A new tick for the diehard birder. Honestly, Singapore's waters are really good for this species - much to the boredom of the residents... Nevertheless, we have learnt to find joy in the subtle behaviors and one individual even went to the extent of feeding right before our eyes. It was tiptoeing on the water as it repeatedly bowed its head to scavenge floating "food". Alas, its "food" was the plastic waste strewn all over the waters. *:(( crying


Besides the four storm-petrels, we encountered a further dozen more and another single Short-tailed Shearwater.


That was the end of the five minutes of excitement. We floated around for another two hours without any notable sightings. Again, when things had gotten too quiet, eight terns flew passed our boat, heading westwards. Frank got a bit skeptical about their preliminary identity, Bridled Terns. Thanks to his skepticism, we found two greyer individuals among the eight and they were Common Terns of the longipennis race in breeding plumage, sporting an all-black cap and white tail streamers. Lovely!


Since it was past noon, we decided to head home. Facing St John's island, we spotted another all-dark bird, gliding above the surface of the water. The flight was rather slow with more gliding than flapping. My preliminary id of the bird was Short-Tailed Shearwater while Frank was leaning towards a Storm-Petrel. We were both wrong. It was none other than the area's third sighting of the Bulwer's Petrel.


The appearance of the Bulwer's Petrel brought life to the boat. Yes, the bird has been seen a week ago. But, who would believe that a pelagic bird would linger for a week? The id of the bird was cast in stone and the only questions in our heads were "was it in Singapore's waters?" and "are Bulwer's Petrels passing through our waters regularly?" Such trivial questions make the aftermath of seeing a bird more fun. The experience lingers longer when there is some reflection. Amazingly, the Bulwer's Petrel, a bird not recorded in our last couple of dozens of boat trips, was to be our last bird of this memorable trip. What a great closure!

  1. Bulwer's Petrel (Bulweria bulwerii) 1
  2. Short-tailed Shearwater (Ardenna tenuirostris) 1
  3. Sooty/Short-tailed Shearwater (Ardenna grisea/tenuirostris) 1
  4. Swinhoe's Storm-Petrel (Oceanodroma monorhis) 14
  5. Grey Heron (Ardea cinerea) 4
  6. White-bellied Sea-Eagle (Haliaeetus leucogaster) 1
  7. Brahminy Kite (Haliastur indus) 2
  8. Bridled Tern (Onychoprion anaethetus) 6
  9. Little Tern (Sternula albifrons) 31
  10. Black-naped Tern (Sterna sumatrana) 3
  11. Common Tern (longipennis) (Sterna hirundo longipennis) 2
  12. Lesser Crested Tern (Thalasseus bengalensis) 7
  13. tern sp. (Sterninae sp.) 10
  14. swiftlet sp. (Aerodramus sp.) 10
  15. Barn Swallow (Hirundo rustica) 1

Sunday, June 2, 2013

Singapore Strait 04May13

Summary from Colin

We went out on a spring seabird hunt on Saturday, and although we didn't record as many Swinhoe's Storm-petrels as we have perhaps done in previous sprngs, the highlight was undoubtedly a juv Christmas Island Frigatebird which saw from a long distance as it came west to east through the Singapore Strait and then gave us an amazing show playing with a fish alongside the boat!
  1. Swinhoe's Storm-petrel 18 (mainly moving east)
  2. Bridled Tern 13 (mainly moving west)
  3. Common Tern 2 (1 ad longipennis and 1 1st winter)
  4. White-winged Tern 5
  5. Black-naped Tern 3
  6. Little Tern 2
  7. Lesser crested Tern 14
  8. Crested (Swift) Tern 2
  9. 'crested sp.' Tern 4
  10. Christmas Island Frigatebird 1 juv
  11. "Short-tailed" Shearwater 1 moving east fast (somehow photographed by the equally fast Jia Sheng!). We've now recorded this species three years on the trot and it appears to be a regular spring west to east migrant in small numbers in early May.

Con Foley's traditional amazing photos can be see here.

And my map is here.

Write-up from Con

http://confoley.com/pelagic-outing-may-2013

Videos from Martin

Flying alongside boat fish in bill
Flying high over boat

Photos from JS

Star of the day - juvenile Christmas Island Frigatebird


The Short-tailed Shearwater that almost got away!


Two Common Terns with different plumage. Left adult, right 1st winter.

Tuesday, May 29, 2012

Singapore Strait 17Sep11

From Con

http://confoley.com/pelagic-outing-september-2011

From Colin

We were out again on the monthly NParks supported seabird survey boat again on Saturday (Sept 17th) and migration was in full swing. The most numerous birds were Bridled Tern with a total of 597 all moving east, however in second place were Swinhoe's Storm-petrel with a total of 510 almost all moving west. The Bridled were moving throughout the day and all across the channel, but almost all the Swinhoe's were seen between 07.45am and 10.45am along the Indonesian side of the shipping lane north of Batam. Despite these vast (record?) numbers other birds were in short supply with about 20 Aleutian Terns (mostly moulting adults) being the only other notable sightings. The other interesting sighting was watching a Swinhoe's Storm-petrel sat on the sea picking at a small dead fish floating on the surface.

From JS

Common Tern 1


Common Tern 2


Swinhoe's Storm-petrel

Monday, May 28, 2012

Singapore Strait 20Aug11

From Colin

The NParks supported monthly Singapore Straits pelagic survey went out again on Saturday and this time we made it all the way to Horsburgh Lighthouse. Highlights were large numbers of Bridled Terns, an adult Long-tailed Jaeger, two different Lesser Frigatebirds and at least one 1st summer Aleutian Tern (which may be a previously undocumented plumage). Thanks as ever to Con Foley for his photos of all the best birds:

Long-tailed Jaeger:
http://www.pbase.com/con_foley/image/137396269
http://www.pbase.com/con_foley/image/137396272

Lesser Frigatebirds:
http://www.pbase.com/con_foley/frigatebird_my
http://www.pbase.com/con_foley/frigatebird_sg

Aleutian Tern:
http://www.pbase.com/con_foley/image/137420001
http://www.pbase.com/con_foley/image/137420002

Our route and the localities of the above are posted on this map link.

In terms of the Bridled Terns there were 80-100 on and around the rocks and buildings of Horsburgh Lighthouse including many birds of the year indicating evidence of successful breeding. There was then a separate feeding flock of about 40 birds comprising largely of young individuals foraging on flotsam along with the Aleutian and 2-3 Common Terns about 18 km west of Horsburgh. In addition throughout the day there were large numbers of predominantly adult birds passing east through the Straits with a final count of 148 birds involved in this movement. We had a day total of six tern species, and that didn't include Lesser Crested!

From Con

http://confoley.com/pelagic-outing-august-2011

From JS

1st Lesser Frigatebird


2nd Lesser Frigatebird


Breeding Common Tern


Immature Bridled Tern


1st Aleutian Tern


2nd Aleutian Tern


From KH

Bridled Tern


Long-tailed Skua