Diane,

I heard one singing in early June in a park in Richmond Beach, just north
of Seattle (where the Black-throated Sparrow was) that had no inflection
to the song whatsoever, producing a good imitation of a junco. Heard
another yesterday in the mountains east of Seattle with a double
inflection, up, then down. I can't tie the rather wide variation I've
heard to date systematically however, but it's something to look into
next spring.

Gene Hunn (hunn at u.washington.edu)

On Wed, 15 Jun 1994, Diane Richardson wrote:

> I'm interested in OC warbler singing patterns as will as singing behavior
> of other migrants. Does anyone know of any literature dealing with the
> changes in singing behavior pre and post nesting? It seems to me that
> song variation in OC Warbs happens more in late spring. More offbeat
> songs now (eg. pitch rising at the end of song) than soon after arrival
> when most songs are classic.
> Diane Richardson richd at amtsgi.bc.ca
>
>
> Diane Richardson EMaDiane Richardson; EMail: richd at island.amtsgi.bc.ca ;
> King Rd., Salt Spring Island, BC V8K IW9
>
>