Subject: [Tweeters] RE: Flicker intergrade: how common?
Date: Dec 3 22:51:53 2010
From: craigco - 2cbird at hughes.net


I once spent a weekend studying flickers south of the TriCities.

I only counted birds I could see with scope. Duplications unlikely.

Intergrades are more common in winter.

Here's the summary.




Flicker Form Study

November 22, 23, 1997






Total

Percent

Male

Female


Red-shafted Form

45

71.4%

27

18



Yellow-shafted Form

2

3.2%

2

0



Intergrade

16

25.4%




63

100.0%











CraigCorder
Cheney

2cbird att hughes dott nett





From: tweeters-bounces at mailman2.u.washington.edu
[mailto:tweeters-bounces at mailman2.u.washington.edu] On Behalf Of Kristi Hein
Sent: Friday, December 03, 2010 6:08 PM
To: Tweeters List
Subject: [Tweeters] Flicker intergrade: how common?



Hi Tweets,

Today we had an apparent intergrade Northern Flicker male at the suet: his
thin but distinctive red nape crescent caught my eye. Other marks were a red
moustachial stripe and yellow shafts showing at the wing edge. It's the
first intergrade I've observed; I read that they are fairly common, but I
wonder how common this variation is. Web research doesn't turn up much
detail. Any input appreciated.

Thanks,
Kristi Hein, Anacortes
khc
at
picturesandwords.com