The woodpecker diversity surrounding the town of Sisters, Oregon is nothing short of astonishing. Considering that woodpeckers occur worldwide, have an evolutionary history that may go back 55 million years, and yet do not occur in Australia, this is a fascinating family of birds. That a density of 11 species occurs in such a small area in the temperate latitude of Oregon’s northern Cascades is also surely worth some investigation; on my Southeastern Peru tour, in an area of the world’s highest bird diversity, we typically see only about 10 species in a much larger area. But that’s beyond the scope of my blog.
In any event, this is
clearly a very good location for the Dean Hale Woodpecker Festival, and this is the second year that I have helped lead field trips for it. The following is the list of the species seen after the third day of
trips.
The field
trip that Tom Crabtree and I led was highlighted by the discovery of a pair of American
Three-toed Woodpeckers, the most unpredictable species in this region.
In the same
burn we found two different Black-backed Woodpeckers.
This is a female
Williamson's Sapsucker, one of the most interesting birds in the area. You
might have already read somewhere that when the first one was collected it was
described as a new species separate from the male.
A Red-breasted Sapsucker, a species
which seems to be slowly encroaching and displacing Red-naped Sapsucker in this
region. No bird distribution is totally static, human-caused habitat changes or
not.
The
White-headed Woodpecker is clearly one of the most charismatic birds of the
region. I never tire of seeing this bird.
The
numerically rarest woodpecker in the region is the Pileated Woodpecker,
which needs large trees in this part of the continent. We found ours on our
last, half-day of field trips by Suttle Lake.
Of course
there are other birds to be seen here. Western Tanager was in a few places, and
this one was a lucky spot along the road to the old GW Burn near Sherman Camp.
In the same area we had this Townsend’s Warbler. Lacking yellow on the breast, it seems to show some intergradation with Hermit Warbler; perhaps two or three generations back.
In the same area we had this Townsend’s Warbler. Lacking yellow on the breast, it seems to show some intergradation with Hermit Warbler; perhaps two or three generations back.
This
Green-tailed Towhee sat up nicely; we heard a few more, though the song is
confusingly similar to the local thick-billed subspecies of Fox Sparrow.
We had two
different Northern Pygmy-Owls this weekend, though neither were as cooperative
as last year’s bird at Calliope Crossing. I took this photo – through the impenetrable
Ponderosa Pine needles – with my camera held up to my binoculars.
If you know
me, you know it’s more than just about birds. The Brown's
Peonies here were early this year, now in fruit.
The participants
were definitely into birds, but all were compelled to stop for this stunning
concentration of Dwarf Purple Monkeyflower (Mimulus
nanus).
The creek
leading to the Black Butte swamp seems to be the only place in Deschutes County
where one might find the delightfully fragrant Nootka Rose (Rosa nutkana).
Higher up
towards the Pacific Crest Trail near Big Lake we found several of this Persius
Duskywing (Erynnis persius borealis).
Rich, an excellent summary of the trip! You and Tom were great trip leaders! Can I ask what camera you were using? Those are excellent photos!
ReplyDeleteThanks Dwayne. I'm using the Canon PowerShot SX50 HS. I've only had it since March, but I'm liking it a lot.
ReplyDeleteRich,
ReplyDeleteYour photo of the Hermit Warbler also looks like a hybrid with Townsend's Warbler. Note the streaking on the flanks which a pure Hermit Warbler don't have.