[EBB Sightings] Yellow House Finch in S.F. <58D00C76-CF53-4D7C-AB63-595D496A43ED@earthlink.net>

Thanks Arlene and everyone for all the great feedback regarding yellow House 
Finches.  Quite interesting in the sense that diet seems to be determining 
plumage color.

Bob Hislop
----- Original Message ----- 
From: "Arlene Gemmill" 
To: 
Sent: Wednesday, June 10, 2009 4:11 PM
Subject: [EBB Sightings] Yellow House Finch in S.F.


>I once phoned an ornithologist, Steven Bailey, at Cal Academy to ask
> the same question - why the yellow Finch?
> He said it had to do with diet. Can't remember the particulars but
> foods eaten can affect coloring.
> Not results of genetics or hybridization. Bird is perfectly healthy.
> On Jun 10, 2009, at 12:00 PM, sightings-request at diabloaudubon.com wrote:
>>>
>>
>> Message: 7
>> Date: Wed, 10 Jun 2009 11:13:59 -0700
>> From: "Bob Hislop" 
>> Subject: [EBB Sightings] Yellow Variant House Finch?
>> To: 
>> Message-ID: 
>> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>> reply-type=original
>>
>> Just observing our daily mix of backyard birds and I noticed what
>> looked
>> like a yellow male House Finch foraging among its red cousins.  I'm
>> not 100%
>> positive on this so I was wondering if anyone else has recorded
>> this variant
>> in the east bay?  (I didn't get a very long observation time as the
>> neighborhood feral cat came wandering through on its daily rounds.)
>>
>> Bob Hislop
>> Walnut Creek
>>
>>
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