[Tweeters] Timing Is Everything: Nov 14, White Salmon, Anna's Hummingbird

Robert O'Brien baro at pdx.edu
Mon Nov 14 21:36:47 PST 2022

Interesting Tweeters post Re: Anna's Hummers in Fall (Winter?).
Here are some observations down south in the Portland Area
Click on the image to get the idea.
Some follow ups; I'll summarize.
In addition to the feeder shown in the photo, My son had a 2nd feeder 10'
away. The one in the photo went empty daily (no surprises) while the one
10' away never went empty. Why? It was guarded by a male who kept the
hoards at bay. As an experiment my son moved the guarded feeder 5' closer
to 5' away. The guard hummer gave up and now the hoards occupy both. How
many hummers can share a feeder at once? There are 7 holes, so 14
hummers. They take turns, like some sort of automaton. Anna's hummer
behavior is pretty complex.
Bob OBrien Portland
PS Sorry to keep harping, but this post was made simple by allowing
photo(s) with an OBOL post. This allows the photo to be stored in the OBOL
archives, which happens without any effort on the part of the local OBOL

On Mon, Nov 14, 2022 at 8:27 PM Dan Reiff <dan.owl.reiff at gmail.com> wrote:

> Hello cj,


> An additional thing to consider.

> Here on Mercer Island we have found that Anna’s are much more tolerant of

> others at a feeder, especially near dark and last feeding, when

> temperatures are very low.

> What was the approximate temperature when they were all on the feeder?

> Thanks,

> Dan


> Sent from my iPhone


> > On Nov 14, 2022, at 6:57 PM, flick at gorge.net wrote:

> >

> > 

> > White Salmon, WA / Nov 14, 2022

> > dusk at 16:46

> > a male Anna's Hummingbird allows THREE females to feed at the nectar

> portals of one feeder simultaneously

> > ? courtship behavior and start-up ?

> > cjflick

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