Verification of Unusual Sight Record
For Utah

Rec. # O_2014-01


   No Photos      

Common name:

none/possibly Northern Rough Wing Swallow mutation?

Scientific name: Stelgidopteryx serripennis? mutation?
Date: multiple days June 2014
Time: 8:30-10am
Length of time observed: common/ home range
Number: 10-20
Age: various
Sex: both
Location: Jordan River, Riverton, west bank near pool/golf course path to river
County: Salt Lake
Latilong: 4000?
Distance to bird: 20 ft-100 ft (birds hunting insects)
Optical equipment: none, eye
Weather: clear
Light Conditions: bright
Description:        Size of bird: 5-6"
(Description:)       Basic Shape: swallow, snub tailed
(Description:)  Overall Pattern: dark gray to black upper body, wings and tail, lemon yellow to pale yellow breast fading to white
(Description:)            Bill Type:  
Field Marks and
Identifying Characteristics:
I don't know what these are other than they are like Northern Rough Wing swallows with Lemon Yellow breasts. I am guessing they are a family of mutations but could be something altogether separate. (The new Utah swallow? lol) Some (females?) have paler yellow breasts. They do not have forked or long tails but are short like Northern Rough Winged Swallows in shape. I believe they are nesting in caves burrowed into the riverbanks above the river. There are generations of them that live there.
Song or call & method of delivery: None noticed
Behavior: Hunting in swallow fashion after flying insects.
Habitat: Riverbank
Similar species and how
were they eliminated:
Definitely swallow/martin. Tail is snubbed and not forked with shorter wings eliminating White throat and Barn Swallows. Nesting in the riverbank eliminates tree swallows and martins.
Previous experience with
this & similar species:
Casual birder.
References consulted: WhatBird and Utah
Description from: From memory
Observer: Karen Robbins
Observer's address: 11777 Lampton View Drive, Riverton, Utah
Observer's e-mail address: **
Other observers who independently identified this bird: David Minter (as yellow breasted swallows)
Date prepared: 6/20/2014
Additional material:  
Additional comments: I would love to hear from anyone you may send to observe this or if you are already familiar with them. They are there every day. Contact me if you need more info.