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Checklist S20745992

 
Location
Bear River MBR -- Auto Tour Loop, Box Elder County, Utah, US ( Map ) ( Hotspot )
Date and Effort
Fri Nov 28, 2014 11:00 AM
Protocol:
Traveling
Party Size:
2
Duration:
3 hour(s), 20 minute(s)
Distance:
12.0 mile(s)
Observers:
Ben Bright
Comments:
Post-Thanksgiving trip with Fred. Great weather.
Species
28 species (+1 other taxa) total
20
Canada Goose
10
Tundra Swan

© Ben Bright

Average Quality
10
Northern Shoveler
2
Gadwall

clearly observed white on secondaries (not visible in picture)

© Ben Bright

Average Quality
9
Mallard
70
Northern Pintail

very conservative estimate

25
Green-winged Teal
5
Canvasback

© Ben Bright

Average Quality
3
Redhead
2
Bufflehead
15
Common Goldeneye
12
Ruddy Duck
1
Ring-necked Pheasant
4
Pied-billed Grebe

© Ben Bright

Average Quality
5
Eared Grebe

one group of two and another group of three

© Ben Bright

Average Quality
30
American Coot (Red-shielded)

conservative estimate

15
American Avocet

one with an injured leg

© Ben Bright

Average Quality
1
Greater Yellowlegs

slightly upturned bill, near avocets

20
Ring-billed Gull
2
California Gull
1
Herring x Glaucous Gull (hybrid)

I think this is an immature Glaucous based on 1) its large size (much larger than California Gulls that it was not getting along with), 2) overall dirty white plumage, 3) bill color (very pink with well-defined black tip with a pink point on the very end of the bill), and 4) most importantly, very light, whitish primaries and tail. Even though light and pictures can be deceiving, the primaries and tail of a Herring wouldn't have appeared so light. Also observed in the field but not too apparent on photos were pinkish legs. I didn't know what to look for in the field to distinguish large gulls so I am going solely off of these photos:

Feb 2016 update: Ryan O'Donnell noted that the primaries appear too dark for a pure Glaucous Gull, and suggested that this bird could be a first-cycle "Nelson's Gull" (Herring Gull x Glaucous Gull hybrid).

© Ben Bright

Average Quality

© Ben Bright

Average Quality

© Ben Bright

Average Quality
4
Northern Harrier
4
Bald Eagle
1
Rough-legged Hawk

© Ben Bright

Average Quality
2
Common Raven
2
Marsh Wren

© Ben Bright

1
Dark-eyed Junco
3
Song Sparrow
18
Red-winged Blackbird
 

Are you submitting a complete checklist of the birds you were able to identify?

Yes