Kaeng Krachan, Thailand, Feb 17, 2018 (1 Viewer)

BKKBen

Well-known member

• Feb 19, 2018

• #1

Hi all,

Just a few ID questions re: birds around km9 at Kaeng Krachan NP, Thailand.

The first pic of the raptor in the tree in the early morning I initially thought was probably a Crested Serpent-eagle based on both body size and its large head, and the second pic, which is both heavily cropped and lightened seems to show a tail band and lightish (yellow?) cere.

Pics 3 an 4 show a green pigeon seen alone near to a flock of Thick-billed Green Pigeons. This bird was never amongst the Thick-billed flock, being about 100m away, and flew away in the opposite direction when approached. It appears to have red feet and darker primaries.

All help is welcome,

Cheers,
Ben.

 

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Werzik

Well-known member

• Feb 19, 2018

• #2

Agree with Crested serpent eagle. For the Treron,
it's probably a female Wedge-tailed?

 

A

andyb39

Well-known member

• Feb 19, 2018

• #3

I'd say the raptor IS a Crested Serpent Eagle from what I can see.

How about female White-bellied Green Pigeon for 3 & 4? I'm not familiar with the species but that seems to be the closest match of the four species of Green Pigeon that occur at KK (Thick-billed, Wedge-tailed and Yellow-vented being the other three).

https://www.hbw.com/ibc/photo/white...sieboldii/female-perched-down-slope-eye-level

http://snowyowllost.blogspot.ae/2012/02/white-bellied-green-pigeon-treron.html

 

A

andyb39

Well-known member

• Feb 19, 2018

• #4

Werzik said:

Agree with Crested serpent eagle. For the Treron,
it's probably a female Wedge-tailed?

Click to expand...

Possibly but should have a bright blue bill-base?

 

BKKBen

Well-known member

• Feb 19, 2018

• #5

Thanks, guys.

Just looking for ID suggestions and tips. I'm very happy to leave the Treron unidentified.

Incidentally, we saw a Wedge-tailed Green Pigeon later on near stream two.

 

Last edited: Feb 19, 2018

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Werzik

Well-known member

• Feb 19, 2018

• #6

andyb39 said:

Possibly but should have a bright blue bill-base?

Click to expand...

Some individuals don't show much bright blue on the bill base e.g. http://orientalbirdimages.org/search.php?Bird_ID=777&Bird_Image_ID=59766, http://orientalbirdimages.org/search.php?Bird_ID=777&Bird_Image_ID=57153.

Maybe if we see the bird's belly, it will be easier to pinpoint.

 

BKKBen

Well-known member

• Feb 19, 2018

• #7

Unfortunately, this is the only pic of this bird, and I wasn't even able to see its underside through my bins before it flew away.

 

Bryon Wright

Well-known member

• Feb 20, 2018

• #8

Hi all,
Ben, #4, it has the typical yellow wing bar as well. Did you consider yellow-vented, with the tail extensions broken off?

 

BKKBen

Well-known member

• Feb 20, 2018

• #9

Hi Byron,

I hadn't really considered anything to be honest. I didn't get a great look at this bird in the field and am only familiar with Pink-necked and Thick-billed among the Treron sp.

Yellow-vented is in the area, and another birder I bumped into that morning had seen one, albeit at a different location in the park.

Cheers.

 

A

andyb39

Well-known member

• Feb 22, 2018

• #10

I'd expect Yellow-vented to show an eye-ring, either blue or whitish, a bright blue bill base and more of a wingbar. I would think this is as dull as they get:

http://orientalbirdimages.org/photographers.php?Bird_Image_ID=4264&action=birderimages&Birder_ID=224

Even this dull bird has pronounced yellow feathering on the wing.

Also, shouldn't the tail be more tapered, as in this bird?

http://orientalbirdimages.org/search.php?Bird_ID=755&Bird_Image_ID=84454

I think the bird is either Wedge-tailed or White-bellied, which unfortunately need a view of the underparts to separate.

 

RafaelMatias

Unknown member

• Feb 22, 2018

• #11

andyb39 said:

I'd expect Yellow-vented to show an eye-ring, either blue or whitish, a bright blue bill base and more of a wingbar. I would think this is as dull as they get:

http://orientalbirdimages.org/photographers.php?Bird_Image_ID=4264&action=birderimages&Birder_ID=224

Even this dull bird has pronounced yellow feathering on the wing.

Also, shouldn't the tail be more tapered, as in this bird?

http://orientalbirdimages.org/search.php?Bird_ID=755&Bird_Image_ID=84454

I think the bird is either Wedge-tailed or White-bellied, which unfortunately need a view of the underparts to separate.

Click to expand...

Hi. I was trying to find any images of juveniles (Yellow-vented) but failed completely (as in pigeons juvs can have a significantly slimmer bill and duller bare parts than adults). I was also checking all YVPigeon photos in OBC images and came to the same conclusion as you, but I just couldn't test/exclude the juvenile possibility. I'm finding it a bit difficult to conciliate the shape of the central tail feather tips with the remaining options (shouldn't they have well rounded central tail feathers?).

 

A

andyb39

Well-known member

• Feb 22, 2018

• #12

Good point, Rafael - I hadn't noticed the central tail shafts, as I was too busy focusing on the bill, eye, etc. Could it be a juv. Yellow-vented after all? Maybe Bryon was right.