Verification of Unusual Sight Record
For Utah

Rec. # 2010-44

Common name:

Pomarine Jaeger

Scientific name: Stercorarius pomarinis
Date: April 25-29, 2010
Time: various
Length of time observed: hour plus
Number: 1
Age: Adult
Sex: male ? (based on tail length)
Location: Sand Hollow State Park
County: Washington
Latilong: 19
Elevation: ~ 880 m
Distance to bird: 30-100 m
Optical equipment: 10 x 42 binoculars; 20-60x scope
Weather: windy and clear
Light Conditions: sunny
Description:        Size of bird:  
(Description:)       Basic Shape:  
(Description:)  Overall Pattern:  
(Description:)            Bill Type:  
Field Marks and
Identifying Characteristics:
Heavy bodied jaeger with strong direct flight with deep wingbeats. Black/ dark brown back and tail. white undersides, dark brown breastband, pale throat, yellow on throat extending up on cheeks and nape, dark black cap. Bicolored bill, dark at tip, pinkish toward base. Dark wings. Long tail with rounded curled feathers (particularly pronounced in flight and sitting on water). In flight, dark upperwings with pale primary shafts and underwing dark with large crescent shaped white patch at base of primaries and second smaller patch visible at close distance.
(see photos)
Song or call & method of delivery: na
Behavior: flying and perching on water
Habitat: open water reservoir
Similar species and how
were they eliminated:
Adult light-morphed Pomarine Jaeger is distinctive (shape of central tail feathers, size, bill length and coloration, etc.)/
Previous experience with
this & similar species:
limited, but I've observed them a few times
References consulted:  
Description from: Notes taken at time of sighting
Observer: Rick Fridell
Observer's address: Hurricane, UT
Observer's e-mail address:
Other observers who independently identified this bird: Rob Dobbs and Meribeth Huizinga
Date prepared: 10-05-10
Additional material: Photos
Additional_Comments: .