Re: (delhibirdpix) Lemon Rumped Warbler (not Brooks), New Delhi

I didnt note any call as the birds were quite far. Yes, the photos are not great but I still feels that they serve the purpose i.e. determining the ID. Just went through "Birds of Northern India" by Grimmet and Inskipp. Here is what it says

Brooks's leaf warbler: Lacks lateral crown stripes and has indistinct pale rump band. From the illustration it is clear that thickness of central crown stripe is less than thickness of supercilium

Lemon Rumped Warbler: Yellow crown stripe and rump band, dark crown sides, dark panel across greater coverts. From the illustration the thickness of crown stripe equals thickness of supercilium.

I agree that the yellow-green tinge on underparts is confusing. But all other features strongly support Lemon Rumped. The same has been confirmed by several birders on the Indian Birds facebook group.

This photo illustrated the features I was talking about. Though not sharp...it does the job. See dark crown sides and how thickness of supercilium and crown stripe are identical.

Thanks,

Udiyaman

On Wed, Feb 18, 2015 at 12:49 AM, Bill Harvey <billharve@gmail.com> wrote:

I think the body plumage is still worn but the head maybe newly moulted. I agree it is well-marked for a Brooks but not excessively so.

I certainly wouldn't describe the rump as "very bright"  and the plain tertials and rather smoky underparts are a problem.

Frankly the pics are just not conclusive enough for what would be a first for Delhi. Did you hear it call?

regards Bill

On Tue, Feb 17, 2015 at 6:48 PM, Udiyaman Shukla <udishukla@gmail.com> wrote:

I did think that it was brooks on the field. However, Brooks's in worn plumage would show a weak crown stripe. The crown stripe on my bird is very apparent. It also has very dark borders on the sides of the crown which would have been green in case of Brooks's.

In all plumages I doubt Brooks's could ever show the very bright rump visible in the photos... this would be especially true in worn plumage.
I'm attaching another pic here. I still may be wrong as I've still got lots to learn about leaf warblers.

The dark panel across the wings is another feature in support of yellow rumped warbler.

I believe this is Brooks, in worn plumage. The shape and colour of the supercilum is similar  in both, the rump is pale yellowish not greenish in Brooks. Yellow-rumped would also show very dark (almost black) tertials broadly edged with white.

regards Bill

On Tue, Feb 17, 2015 at 3:59 PM, Udiyaman Shukla <udishukla@gmail.com> wrote:

Apologies for posting a bird with incorrect ID. This is not a Brooks's Leaf warbler as I posted earlier but rather a pair of Lemon(Pale) Rumped Warblers.

ID pointers are as follows:

1.) Eye stripe forms a hook behind the eye

2.) Colour of rump is yellowish white as compared to pale green on Brooks's(3rd &4th photo)

3.) Lack of yellow suffusion on the underparts

4.) Crown stripe is strong and sides of crown are dark

A great bird to get in my very own garden. Poor quality of shots is regretted. They were taken around sunset and at a distance.

(Sorry for blatantly exceeding the file size limit. But all of these angles are neccesary to confirm ID)

Ansari Nagar, New Delhi

17 Feb 2015

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