Based on my rather casual feeder observations of Anna's hummingbirds at my
location for 40 years I concluded about 10 years ago that they are quite
migratory in Oregon at least at my location and I've mentioned this off and
on, on obol for quite a while. after their absence for many decades at my
location which is quite rural they didn't show up in any numbers until
about 15 years ago although i believe I saw two or three flybys in earlier
years. since that time there's been quite a bit of variability with
occasional large numbers showing up several weeks before the rufous arrive.
this is in addition to a few overwinterers. this year a fair number have
show up in recent weeks but nowhere near the huge pulses of some past
years. No Rufous here so far.
And of course last year was extremely anomalous for both species with very
late arrivals as reported by many obolers. I only had a single male rufous
last year arriving about 6 weeks late; females were present in low numbers
but also showed up very late.
Bob O'Brien Carver Oregon 20 miles Southeast of Portland
On Thursday, March 21, 2019, Rusty Scalf <rscalf@xxxxxxxxx> wrote:
I make monthly visits to Oceanside, OR to help take care of my mother. Mysister keeps hummingbirds feeders in the back. All winter long there Anna's
females, and a pair of Rufous. Hummingbird wars!
Now in March there are at least 4 male Anna's, a similar number of
their numbers?
My question: Are Anna's truly sedentary? Why the sudden doubling of
Has anyone else seen a uptick in Anna's numbers/
Rusty Scalf
Oceanside, OR/ Berkeley, CA
