Verification of Unusual
Sight Record
For Utah
Rec. # 2017-15
Common name: |
Alder Flycatcher |
Scientific name: | Empidonax alnorum |
Date: | sept. 13, 2016 |
Time: | 9:40 a.m. |
Length of time observed: | 5 minutes |
Number: | 1 |
Age: | |
Sex: | unknown |
Location: | Salt Lake International Center 40.7717257,-112.0115992 |
County: | Salt Lake |
Latilong: | 6 |
Elevation: | about 4300' |
Distance to bird: | 25' |
Optical equipment: | binoculars and 500mm camera lens |
Weather: | 63* and partly cloudy |
Light Conditions: | good |
Description: Size of bird: | looked typical for an Empid. Hard to judge the exact size on a lone bird. |
(Description:) Basic Shape: | flycatcher |
(Description:) Overall Pattern: | olive, brown, and white |
(Description:) Bill Type: | wide convex and longish |
(Description:)
Field Marks and Identifying Characteristics: |
This ID is 4 months in the making and I believe would be a first state record.
In the field my impression was Willow Flycatcher but the eye-ring did not look
right. Eye-ring much to pronounced. The bird also seemed more colorful than what
I remembered for any Willow. My doubt caused my to put the binoculars down and
go to the camera. After loosing the bird across the street I started to study
the few photos I had captured. I didn't know what to think but I have seen many
many Willow Flycatchers over the years and I was feeling it wasn't a Willow.
After consulting the books in my car I played with the idea that it fit Alder
really well. I called Bryant Olsen and told him I had a possible Alder
Flycatcher. He couldn't come right away but he went in the afternoon and
captured a few photos of what looked like the same bird but his photos were from
a lot further away. The next 2 weeks or so became a debate by email. Bryant also sent the photos to a number of people. Together we settled on Yellow-bellied Flycatcher for all the reasons that were stated in the record Bryant submitted last fall. I had no positive feed back on my Alder Flycatcher ID and since there are no Utah records I easily gave that up. I have no experience with Eastern Flycatchers. Willow was suggested by some but the eye-ring is to pronounced and the green is to vibrant so I was not willing to call it that. Fast forward to present. Kenny Frisch received this comment from Tony Leukering at ebird central, -"Alder Fly -- the bright white throat rules YBFL out in every plumage; tail is wide-based, upper parts are quite green; mandible is entirely yellow-orange -- there's really nothing else that it can be" This was the first anyone had agreed with my initial impression in the field. I know this is a tough ID and my experience is seriously lacking with Alder flycatchers. My lack of confidence on this is very high so I have tried to rely on others who may have more experience with the Empids we don't see often in Utah. But I do feel strongly at this point that I finally got this one right. Hopefully this is a first state record. (see photos) |
Song or call & method of delivery: | none |
Behavior: | Flycatching |
Habitat: | Austrian Pines, Russian Olives, and Cottonwoods over wet weedy half kept lawn. |
Similar
species and
how were they eliminated: |
All Empids lacking the all yellow lower mandible were eliminated. Willow eliminated because of eye-ring, color, and broad tail. Color, eye-ring, and primaries don't fit the western flycatchers. Yellow-bellied eliminated because even though in rare cases a photo or two on the ebird library did fit it, namely some appear to have the white throat, that ID may have been a bit of a stretch and forced. The white contrasting throat, pattern and color do fit Alder better. |
Previous
experience with this & similar species: |
I have a lot of experience with the ID of the Empids we more regularly see every year and migration here in Utah. I have no experience with Alder Flycatchers. |
References consulted: | NG birds of Western NA, Sibley second edition, Peterson Advanced Birding, and Kaufman Advanced Birding. Internet Empid ID documents. 100's of online confirmed ID photos. |
Description from: | From photo(s) taken at the time of the sighting |
Observer: | Matthew Pendleton |
Observer's address: | 12043 Bluff View Dr. Sandy 84092 |
Observer's e-mail address: | ** |
Other observers who independently identified this bird: | |
Date prepared: | 2/6/2017 |
Additional material: | Photos |
Additional comments: | I will email photos to Milton. |