Verification of Unusual Sight Record
For Utah

Rec. # 2011-68

Common name:

Whip-poor-will (Eastern/Mexican)

Scientific name: Caprimulgus vociferus
Date: 10/1/2011
Time: 7:30 pm
Length of time observed:  
Number: 1
Location: Trin-Alcove Canyon, Green River mile 90
County: Grand
Distance to bird: 100 meters
Optical equipment: ear
Weather: clear
Light Conditions:  
Description:        Size of bird:  
(Description:)       Basic Shape:  
(Description:)  Overall Pattern:  
(Description:)            Bill Type:  
Field Marks and
Identifying Characteristics:
Confirmed by call - no visual. Call was compared to recording on iPhone app. - "iBird Pro". The call sounded like the bird's name "whip-poor-will" with the last notes faster in succession than the first. I was pretty shocked to hear the call along the Green River, but am positive that's what it was. After I heard it, I played the call on my ipho ne (iBird app) to make sure as well, and its pretty unmistakable. The bird was actually a few hundred yards away, and it did not call back to me, but my iphone speaker is not very loud. I played the common poorwill's call on the iphone as well and it didn't sound like the call I heard. I heard it just at dark in the evening, and then early in the morning the next day
Song or call & method of delivery: loud and clear call heard and compared to recorded call on iPhone.

[Response to a committee inquiry]

Habitat: The bird was actually calling from up a wooded tributary drainage (Trin-Alcove), away from the Green River. The drainage was pretty brushy, with quite a few large cottonwoods and willows.
Similar species and how
were they eliminated:
I played the recorded calls of other nightjars that may be found in the area to compare it to what I had heard, and there was no question it was a whip-poor-will. I also played the whip-poor-will's recording on my phone as it was calling for comparison.
Previous experience with
this & similar species:
I'm actually quite familiar with the whip-poor-will's call. I assisted a friend of mine with his masters research in northern Wisconsin which involved locating whip-poor-will's using call playbacks (i.e., I heard it over and over and over).
References consulted:  
Description from: Notes taken at time of sighting
Observer: Brian Healy
Observer's address: 4115 Canyon Loop, Flagstaff, Arizona 86001
Observer's e-mail address:
Other observers who independently identified this bird:  
Date prepared: 12/23/11
Additional material: