cntlaw

2009.11.25 Heuglin's Gull 烏灰銀鷗 @NSW, 16:16
t

(Edit note1: changed name from 黃腳銀鷗(Yellow-legged Gull ) to 烏灰銀鷗(Heuglin's Gull ) as suggested )

[ Last edited by cntlaw at 6/12/2009 02:29 ]

cntlaw

Quote:

Original posted by cmichaell at 3/12/2009 13:19
The bird in your photo is an adult Heuglin's Gull. Apart from its yellow legs, it is Heuglin's because its mantle and upperwings are relatively dark grey with little contrast between the grey and the  ...

Hi Mike, thanks for this good piece of details.
Looking at my photo again, guess I can simply ID Heuglin's Gull by its brownish streaks on dirty white head too...
Will change the title accordingly.
Cheers
t

cntlaw

Quote:

Original posted by cmichaell at 6/12/2009 09:39
Head streaking on winter adult large gulls varies a lot and is more of an indicator than a diagnostic feature.

In general, winter plumage Heuglin's gulls have relatively fine head streaking usually  ...

Thanks again Mike. That has enlightened me to ID difficult Winter gulls than just Black-headed.
Incidentally, (guess) a Brown-headed Gull(棕頭鷗) was being captured this morning in NSW. Hope I got this right?
t

cntlaw

Quote:

Original posted by cgeoff at 6/12/2009 20:31
The bird photographed is a first-winter Black-headed Gull.

Brown-headed has a different wing tip pattern, and pale eyes (among other features).

Geoff

Thanks Geoff. I shall be more cautious about gulls ID.  
tony