?Hi Lona,
If a Rufous Hummingbird chased off purple-throated one, I would guess it is a
Calliope, rather than a Costa's. Calliopes cannot compete with the Rufous
hummers, but the Costa's hummer won't back down. Several years ago, we had a
female Costa's at our house. I knew I had something different before I could
put the bins on her because she ran off any and all Rufous that dared approach
'her' feeder. She returned for three years in a row; always to molt and grow
tail feathers, which took about five weeks.
cheers,
Jim
Dr. Jim Moodie
Science Dept
COCC
Bend, OR 97701
________________________________
From: obol-bounce@xxxxxxxxxxxxx <obol-bounce@xxxxxxxxxxxxx> on behalf of Lona
Pierce <lona.pierce@xxxxxxxxxxxxxxx>
Sent: Sunday, April 2, 2017 10:04
To: obol@xxxxxxxxxxxxx
Subject: [obol] Re: Costa's
A couple of day's ago my adult son asked if any hummingbirds had purple on
them. He saw what he thought was purple on a hummer trying to access a feeder
on our patio, only to be instantly chased off by a rufous. I watched on and off
for the rest of the day, but never saw it. With a couple of recent obol reports
of Costa's, he could have actually seen one. He knows what Anna's and rufous
hummers look like. Wish I'd seen it to be able to verify, plus it'd be a first
for my yard!
Lona Pierce,
Columbia County
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