In the very early morning hours, I sometimes hear a mystery bird singing
in my NE Seattle neighborhood. ("Sometimes" because I'm usually asleep
then.) It stops singing about the time the Robins get into full gear,
about 4 AM, and I never hear anything like it during the day. I heard it
last year during the summer, too.

It's a nearly continuous string of twangy, short notes. Some notes sound
like those of a Violet-green Swallow, but all the VGSW I hear during the
day "sing" mostly single notes. It is kind of chittery, like a swallow,
and seems to be constantly moving. But what would a swallow be doing up
when all the bugs are too cold to fly? It's not a Nighthawk; I know what
they sound like.

I know it's a long shot, but does anyone know what it could be?

Kelly Cassidy