Verification of Unusual Sight Record
For Utah

Rec. # 2021-43

Common name:

Vaux's Swift

Scientific name: Chaetura vauxi
Date: 6/27/21
Time: 19:45
Length of time observed: 10 seconds
Number: 1
Age: Adult
Sex: Unknown
Location: Little Cottonwood Canyon, Coalpit Overlook
County: Salt Lake
Distance to bird: 30ft
Optical equipment: Vortex 10x50
Weather: Sunny, calm, clear
Light Conditions: Near sunset, mix of shadows and sun
Description:        Size of bird: Swallow-sized
(Description:)       Basic Shape: Cigar-shaped with pointed wings
(Description:)  Overall Pattern: Brown, light brown throat
(Description:)            Bill Type: Tiny
Field Marks and
Identifying Characteristics:
Flyby; rapid, bat-like wingbeats; small and brown overall with lighter brown throat. Tail was square with small needle feathers visable.
Song or call & method of delivery: NA
Behavior: Rapid, bat-like flight, flying low just above the treeline
Habitat: Montane forest
Similar species and how
were they eliminated:
Though swallow-sized, lack of definitive colors and frantic wingbeats indicated swift. Small size and overall brown body eliminated Black or White-throated. Range and lighter throat made me think Vaux's over Chimney.
Previous experience with
this & similar species:
Have seen all other swift species, very familiar with flight pattern. Also quite familiar with Chimney Swifts out East.
References consulted: Audubon app, field guide
Description from: From memory
Observer: Ian Batterman
Observer's address: 8538 S Harvard Park Dr
Observer's e-mail address: **
Other observers who independently identified this bird:  
Date prepared: 7/17/21
Additional material:  
Additional comments: