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        Discussion Area 討論區 >> Photo Gallery 相片分享 I >>  Large-billed Crow 大咀烏鴉
        
(Message started by: 假鳥迷 on Oct 7^th, 2003, 8:28am)

Title: Large-billed Crow 大咀烏鴉
Post by 假鳥迷 on Oct 7^th, 2003, 8:28am

447 Large-billed Crow 大咀烏鴉

I got two pictures of Large-bill Crow from my friend "Bad Egg #1". We met some problem to the identification.

Share with you all.  Below are two pictures of crow which took in Hong Kong. Both of them have powerful bill, but the shape of the foreheads and the bills are completely different. I would like to seek on identification:

1. Are they the same species?
2. Is there any sub-species occur in Hong Kong?

Please help.
http://www.hkbws.org.hk/fileServer/PhotoG/abcd/abcdlbcrow01.jpghttp://www.hkbws.org.hk/fileServer/PhotoG/abcd/abcdlbcrow02.jpg

Title: Re: Large-billed Crow? ! Please help...
Post by Mike Kilburn on Oct 7^th, 2003, 9:47am

Hi ???

They are both Large-billed Crows. The upper picture shows a typical adult bird with the typical steep angle between the bill and the crown.

The lower one is a juvenile. They show the shape of the skull much more clearly and do not have the full feathers on the crown.

However you ned to wacth out for Carrion Crow. There are less than 10 records, but thay also show the flat crown like the juvenile, but the bill is more slender.

Cheers
Mike

Cheers
Mike

Title: Re: Large-billed Crow? ! Please help...
Post by 假鳥迷 on Oct 7^th, 2003, 11:16pm

Thanks Mike for offering help!!!