Date: 5/26/19 12:42 pm
From: Jack Williamson <jack.williamson.jr...>
Subject: [obol] Re: A break in the weather brought good birds to Black Butte Ranch
Very helpful. Thank you!

Jack Williamson
West Linn, Oregon


On Sun, May 26, 2019 at 12:39 PM Tom Crabtree <tc...> wrote:

> Jack, the first empid is a Willow Flycatcher. Note the white throat,
> large bill with what appears to be a completely orange lower mandible,
> medium primary projection showing rounded tips, and white undertail
> coverts. You can see the pale, thin eyering and a light spot between the
> eye and the bill. It is not a Western Wood Pewee, because your bird
> doesn’t have extremely long, pointed primaries. Dave Irons wrote a nice
> article on separating Willow Flycatchers and Western Wood Pewees a few
> years ago that is helpful. Here’s the link:
> http://www.birdfellow.com/journal/2012/06/09/an_under_appreciated_id_challenge
>
>
>
> Number 2 is hard to determine. It appears to have a long primary
> projection in the first photo and typical Pewee upright posture. However
> because it is back lit and underexposed, I can’t really see where the
> secondaries end and the primaries extend past them. Similarly it is
> impossible to tell whether the bird has a pale eyering or not. The
> undertail coverts in the second photo appearing more white than dusky, but
> that is hard to evaluate because the picture is slightly overexposed. The
> wing tips look more rounded in the second photo which favors Willow
> Flycatcher and highlights the problems of trying to ID a difficult species
> in one photo (recall the discussion of the empids from Malheur last fall).
> The warm brown tones are usually more associated with Willow Flycatcher
> than Pewees. It appears that there is a light patch in the lores which
> would indicate Willow as Pewees should have all dark lores. I am leaning
> towards Willow Flycatcher, but I think we would need more photos to be
> confident of an ID either way.
>
>
>
> Tom Crabtree, Bend
>
>
>
> *From:* <obol-bounce...> [mailto:<obol-bounce...>] *On
> Behalf Of *Jack Williamson
> *Sent:* Saturday, May 25, 2019 6:05 PM
> *To:* OBOL Oregon Birders Online
> *Subject:* [obol] A break in the weather brought good birds to Black
> Butte Ranch
>
>
>
> There was a wonderful assortment of birds this morning on the ranch.
>
>
>
> WILSON'S SNIPE, WILSON'S PHALAROPE, WILSON'S WARBLER, YELLOW WARBLER,
> ORANGE-CROWNED WARBLER, and two EMPIDONAX sp. were among the
> most cooperative.
>
>
>
> The two Empidonax flycatchers were about 1/2 mile apart. Unfortunately,
> neither bird vocalized. But both bobbed their tails up first, then down
> helping me rule out Gray. I noted pale lores, off-white wing bars,
> olive-gray upperparts, white to yellow-tinged underparts, and a faint
> eye-ring on the first bird. The second bird's posture was more erect than
> the first and it was darker overall, with whiter wing bars and had a longer
> primary-projection. I've tentatively identified the first bird as a WILLOW
> FLYCATCHER, and the second as a DUSKY FLYCATCHER.
>
>
>
> Your thoughts will be appreciated.
>
>
>
> https://www.jack-n-jill.net/blog/2019/5/big-meadow-black-butte-ranch
>
>
>
>
> Jack Williamson
>
> West Linn, Oregon
>

 
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