Migration dates for Rufous Hummingbird
- On July 4th near the summit of Hwy 108 in Mono County, I watched a
male Rufous Hummingbird feeding on paintbrush. Seemed a little early
for the southbound migration, but perhaps not for males. The
specific site was at 9100' beside the north fork of Levitt Creek
about 1/2-mile west of Hwy. 108. Does anyone have early dates for
the migration of this species?
Also of interest to me was the ratio of Purple Finch to Cassin's
Finch at this location -- 1:3 -- pretty high for congeners who are
theoretically not suppose to be sympatric. There were several pairs
of Purple Finches along the stretch of Levitt Creek up to Levitt
lakes. And many pairs of the more expected Cassin's. Of course, I
might have just been seeing individual Cassin's with traits tending
toward Purple: Like (1) about 10% bigger than the "normal" Cassin's,
(2) unstreaked sides and undertail coverts, (3) larger bill, (4)
distinct, distally expanding white eyeline in female.
Gray-crowned Rosy Finches continue to work the few remaining snow
fields on the margins of Levitt Lake, but the Northern Goshawk I have
often seen here didn't appear in 3 days of camping. The Dippers had
fledged sometime before July 4th, again seemingly early for this
elevation. And the Pine Grosbeaks were anything but secretive.
> Also of interest to me was the ratio of Purple FinchI was in the Greenhorn Mts above Lake Isabella last
> to Cassin's Finch at this location -- 1:3 -- pretty
> high for congeners who are theoretically not suppose
> to be sympatric. There were several pairs
> of Purple Finches along the stretch of Levitt Creek
> up to Levitt lakes. And many pairs of the more
> expected Cassin's. Of course, I
> might have just been seeing individual Cassin's with
> traits tending toward Purple: Like (1) about 10%
> bigger than the "normal" Cassin's, (2) unstreaked
> sides and undertail coverts, (3)
> larger bill, (4) distinct, distally expanding white
> eyeline in female.
> Stephen Long
> Oakland, CA
June, birding between 6000 and 6800 ft. Lots of
Caropadacus finches, and to my surprise, all of them
Purple. Two aspects of the woodlands here were
perhaps noteworthy: Very few pines and a good
admixture of Black Oak. In my experience on the
Western slope, Purple Finches seem to follow the Black
Oak mixed woodlands upslope and seem to drop out when
the Black Oak stops. Cassin's Finch seems to like a
goodly proportion of pine, especially Jeffry/Pondersa
Pine, in the tree mix. Has anyone else made these (or
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- We've had Rufous hummers at our feeders here at Tahoe since July 5. All
adult males so far.
Also Anna's and Calliope, all at 6800 ft.
Richard C. Carlson
Full Time Birder, Biker & Rotary Bureaucrat
Palo Alto & Lake Tahoe, CA
- I saw a male Rufous in Big Bear today and another male Rufous at
Heartbar State Park.
My guide to Birdwatching in Riverside California shows the Rufous
coming to Southern California for their "Fall" migration in July and