I've been away from home for a while, but had a chance last night to listen
for nocturnal migrants over my house in eastern Boulder County, Colorado.
During nautical dawn, I heard three (3) Chipping Sparrows fly over.
Chipping Sparrows do not breed in my neighborhood, but, rather in the
mountains to the west. By mid-July, their molt-migration is briskly
underway, with the most straightforward detections being of migrants on
calm nights with a light west wind.
Lafayette, Boulder County, Colorado, USA
Editor, *Birding* magazine
The ABA Blog: http://blog.aba.org/
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