Showing posts with label Bulwer's petrel. Show all posts
Showing posts with label Bulwer's petrel. Show all posts

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

Singapore Strait 29Apr17

From JS
On 29 April 2017, we joined the pelagic trip (2x boats) organised by See Toh and Francis. Straits of Singapore is probably one of the last few frontiers for birdwatching in Singapore. There are still a lot of knowledge to discover concerning the movement of seabirds through this part of the world. With a bit of fortuity, a vagrant may appear - which is the case in other waters of the world. For birdwatchers seeking an additional tick for their Singapore list, the Straits of Singapore is the place to explore.

Setting off at 7am from Sister's islands where we had just cleared customs, we headed eastwards towards Horsburgh Lighthouse, our key destination for the day. For the first one and a half hour, we saw nothing. The weather was not favorable with dark clouds before us. Our first bird was a pair of Little Terns. Following which, we encountered an Arctic Skua in the distant. Thereafter, it was just Bridled Terns and Short-Tailed Shearwaters capturing our attention. To think that a couple of years ago, the latter was not even recorded and our count has exceeded 10 by the time we had reached Horsburgh Lighthouse!!!


Bridled Terns


Short-tailed Shearwaters

At Horsburgh Lighthouse, I was honored to finally record the Black-Nest Swiftlet for my Singapore list. To do so, I had to spot the birds on the black nest built below the window ledge of the buildings on the outcrop. Tough work!

Another interesting sighting at the lighthouse was a pod of three Indo-pacific Humpback Dolphins including one calf. To demonstrate our delight for the sighting, we actually spent additionally time circling the outcrop two times in search of them. Alas, they did not show again...


Indo-pacific Humpback Dolphin

Heading back, we stayed close to the Indonesian side of the International waters. This rewarded us with further sightings of Short-Tailed Shearwaters, Bridled Terns, three White-Winged Terns (including one individual moulting to breeding plumage) and an Aleutian Tern in breeding plumage. Great sightings, especially the birds in breeding plumages.


White-winged Tern


Aleutian Tern

Hoping to find something different, we checked the yellow buoys off the coastline of Indonesia and found resting Lesser Crested Terns, a new bird for the trip.

Just as we were leaving the last buoy to head back to Singapore, we saw an all-dark bird gliding at the surface of the waters. The flight of the bird resembled that of the Shearwaters. Thus, I was too quick to identify it as just another "Short-Tailed Shearwater". Thankfully, See Toh was quick to point out something unusual about the bird - it had pale upperwing coverts. This was no shearwater, it was a passing Bulwer's Petrel!!! Out of our excitement, we actually made a U-turn and attempted to look for the bird. The bird was probably long gone by then but we just wanted so much to re-find it. The significance of the sighting was simply the bird has yet to be recorded in our Singapore checklist. Any sighting of the species could mean a step closer to its inclusion...


Bulwer's Petrel

After seeing 10 species of seabirds, including a potentially new species for the Singapore checklist, all the participants were in fine spirit. All of us would like the birds to come closer to our boats but as with any pelagic outings, nothing is certain. The potential of finding new birds or the risk of going home empty handed makes pelagic outings so interesting. With eagerness, we await our next pelagic adventure...

  1. Bulwer's Petrel (Bulweria bulwerii) 1
  2. Short-tailed Shearwater (Ardenna tenuirostris) 27
  3. Grey Heron (Ardea cinerea) 1
  4. Brahminy Kite (Haliastur indus) 1
  5. White-bellied Sea-Eagle (Haliaeetus leucogaster) 1
  6. Arctic Skua (Stercorarius parasiticus) 2
  7. Long-tailed Skua (Stercorarius longicaudus) 2 - Species only seen by participants on another boat
  8. Bridled Tern (Onychoprion anaethetus) 26
  9. Aleutian Tern (Onychoprion aleuticus) 2
  10. Little Tern (Sternula albifrons) 2
  11. White-winged Black Tern (Chlidonias leucopterus) 3
  12. Black-naped Tern (Sterna sumatrana) 4
  13. Lesser Crested Tern (Thalasseus bengalensis) 22
  14. tern sp. (Sterninae sp.) 36
  15. Black-nest Swiftlet (Aerodramus maximus) 100
  16. Pacific Swift (Apus pacificus) 4
  17. Barn Swallow (Hirundo rustica) 3
  18. Pacific Swallow (Hirundo tahitica) 10

Pacific Swift

Sunday, December 4, 2016

Singapore Strait 12Nov16

From JS

We were about to fall asleep (for those at the lower deck) when Francis spotted a large, black bird flying close to the water. It flew like a shearwater, banking and gliding (with wings bent slightly). At one point of time, it even made a 180 degrees swerve. On closer look at the photos, its head is certainly not a shearwater's but closely resembled a storm-petrel's.

Given its shearwater-like flight and long unforked tail, this looks like a genuine contender for Singapore's first Bulwer's Petrel record.


Juvenile Red-footed Booby


Skua sp.


Red-footed booby from Danny



Changi 12Nov16

From Con

I was at what little is left of Newater plant grasslands with LKK, LCH, et al. We only got a few OHBs and accipiters. No harriers. Grassland patch now very small. Gone soon. SAF Yacht Club also gone. Being torn down.