On 3/25/2012 6:48 PM, June Tveekrem wrote:
> I will defer to the experts, by my experience is that they drive me 
> crazy until summer. Furthermore, the 1-year old American Crows tend to 
> stick around and help their parents with feeding young in the nest 
> rather than dispersing to raise young themselves. So the crows hatched 
> this year would be adults in the sense of fully fledged, but maybe not 
> fully developed in voice and behavior.
>
> Would anybody who knows more about birds than I do care to chime in on 
> this?
>
> June
>

I found a very informative page on calls and other distinctions between 
the two species of Crow at Cornell, url
<http://www.birds.cornell.edu/crows/FishCrow.htm>.  There are links to 
sound files there as well as considerable discussion.
The bottom line is that the confusing Common-Crow call is a begging 
call.  It is more common later in the season because young crows talk 
about food a lot, but the same call is used by female Crows at the 
beginning of the nesting cycle.

-- 
Maurice Barnhill
Newark, DE

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