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        Discussion Area 討論區 >> Bird Identification 鳥類辨識 >>  Warbler ID please
        
(Message started by: Lynx on Oct 9^th, 2005, 2:17pm)

Title: Warbler ID please
Post by Lynx on Oct 9^th, 2005, 2:17pm

These warblers were spotted at Tai Po Kau this morning (9 Oct 05). Are they Eastern Crowned Warblers?
http://www.9014316.com/birds/CRW_2711.jpg
http://www.9014316.com/birds/CRW_2717.jpg
http://www.9014316.com/birds/CRW_2728.jpg

Title: Re: Warbler ID please
Post by HF_Cheung on Oct 10^th, 2005, 3:14pm

Yes, I think they are Eastern Crowned Warbler. The reasons are:

1. Although the crown is not seen well, it is a larger leaf warbler (judging from the size of the head relative to the body). It has a long body that is similar to that of Arctic Warbler, but the tail appear a bit longer (wing tip further up the tail).

2. On colour, it has two clear thin wingbars (unlike most Arctic and Pale-legged Leaf Warbler).

3. Its lower mandible appears to be totally orange in colour (a very good feather of Eastern Crowned).

4. its paler underparts compared to Arctic, and I think there are also light yellow on the vent (difficult to see clearly). These are good supporting features for Eastern Crowned.

5. The legs are dark enough to eliminate Pale-legged Leaf Warbler.

Please add more if you notice more field marks.

HF Cheung

Title: Re: Warbler ID please
Post by johnallcock on Oct 10^th, 2005, 4:33pm

There was a slight influx of Eastern Crowned Warblers into Tai Po Kau yesterday. I saw at least five different individuals.

However I saw no arctic warblers and only one pale-legged/Sakhalin leaf warbler, both of which are usually commoner than Eastern Crowned!

Title: Re: Warbler ID please
Post by Lynx on Oct 10^th, 2005, 7:18pm

Thanks very much Mr. Cheung and Mr. Johnallcock's input.

The field observation I can add is that the warblers are relative larger than yellow-browed warblers and less active.  That's why I could take several photos of them.  There was no noticeable voice heard.