From south-bay-birds-bounces+south-bay-birds-archive=[[email protected]] Thu Oct 31 14:47:37 2002
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Date: 31 Oct 2002 14:43:29 -0800
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From: Les Chibana <[[email protected]]>
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...and it may be difficult to determine if last year's bird was a 
1st winter or an adult female tan-stripe, which can both show breast 
streaking. Pyle's "ID Guide to NA Birds" and Byers-Curson-Olsson's 
"Sparrows and Buntings" express caution about sexing and ageing by 
breast streaking and plumage dullness.

Les
-- 
Les Chibana
BirdNUTZ(TM) - Ornigasmic Birding
em <[[email protected]]> - web <http://www.birdnutz.com>
ph 650-949-4335 - fx 650-949-4137
snailmail: SR 2, Box 335, La Honda CA 94020


On Thursday, October 31, 2002 11:46 AM, Al Eisner <[[email protected]]> wrote:
>Jack:
>
>> I discovered a WHITE-THROATED SPARROW under my feeders today, where one 
>> spent over five months last winter, arriving at approximately this same 
>> time. Whereas that bird was obviously a tan-striped individual, the 
>> supercillium on this new arrival are quite white. So my question is: can 
>> this be the same bird, or put another way, do WTSP's change
>their stripes?
>
>Do you know if last year's bird was an immature (first-winter)?  From what
>I recall, immatures don't have white "stipes", that develops
>later.
>
>Al

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