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Subject: [Gulls] Vega Gull [Print This Page]

Author: gary    Time: 30/03/2008 23:04     Subject: Vega Gull


As identified by Geoff C, this is a first winter Vega Gull


The right juvenile is Vega but the left juvenile is not. Very confusing!!

Mai Po
29.3.2008
Author: Tony    Time: 1/04/2008 00:40

is mine 1st winter as well??

how to identify? by the deep eye, and darker belly?

Image Attachment: vega gull 1st winter.jpg (1/04/2008 00:40, 0 Bytes) / Download count 1070
http://hkbws.org.hk/BBS/attachment.php?aid=1599


Author: gary    Time: 1/04/2008 00:59

It's actually the same bird, it seems to be the only juvenile with darker breast.
Sorry, I have no idea how to identify this gull.

Gary
Author: cgeoff    Time: 1/04/2008 08:54

Vega Gull in its first winter can be identified in HK by the following features:

rather pale and uniformly-patterned greater coverts showing no moult contrast;
pale inner primaries visible in flight;
tail band that on average is slightly narrower than heuglini, and also, on average, rather browner;
slightly bulkier and shorter-winged structure than heuglini (not as marked as Slaty-backed in either respect);
late in the winter, relatively darker underparts and somewhat darker base to the bill.

The first two features should be visible on all birds, I believe, if only to rule out the possibility of hybrid origin. Not all the remaining features will necessarily be visible on all birds.

Geoff
Author: cchristina    Time: 1/04/2008 13:51

Also the pic of Vega Gull 1st Winter






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