Anna's do seem to disperse. When I was banding at Bear Camp (Curry Co), at
what was the highest elevation area in that part of the coast range, a few
Anna's Hummers were captured late enough in the summer that they were likely
"migrants." They didn't nest at the site, or nearby, as far as I was aware.
There were Rufous in the area, however, but they numbers really increase after
the fledgling started to disperse.
Dennis
----- Original Message -----
From: Alan Contreras
To: David Bailey
Cc: OBOL
Sent: Thursday, February 04, 2016 10:01 PM
Subject: [obol] Re: Variation in Anna's Hummingbird abundance
Anna’s do seem to move around a bit, though I am not sure that “migrate” is
the right word. I am not sure how their dispersal works.
Alan Contreras
acontrer56@xxxxxxxxx
On Feb 4, 2016, at 9:55 PM, David Bailey <davidcbaileyoregon@xxxxxxxxx>
wrote:
Tim R,
Conventional wisdom would assert that Anna's Hummingbirds do not migrate.
That has been my observation in NW Oregon. You have probably considered that
too. Since Anna's will nest early in the year (and midwinter), I suppose early
fledgling could account for an influx in the numbers at a specific feeder or
area. Could you shed some light on your statement of Anna's Hummingbird
migration. Perhaps I have been in the dark about this.
Respectfully,
David
David C. Bailey
Seaside, Oregon
Just one male Anna's visiting my one feeder currently.
