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Checklist S10448161

 
Location
Bear River MBR -- Auto Tour Loop, Box Elder County, Utah, US ( Map ) ( Hotspot )
Date and Effort
Sat Apr 14, 2012 10:06 AM
Protocol:
Traveling
Party Size:
4
Duration:
4 hour(s), 17 minute(s)
Distance:
12.8 mile(s)
Observers:
Anne Shifrer List , Ryan P. O'Donnell
Comments:
Bridgerland Audubon Society field trip, led by Ryan O'Donnell. Also heard singing Boreal Chorus Frogs and one Northern Leopard Frog.
Species
51 species (+2 other taxa) total
X
Canada Goose
2
Tundra Swan

One pair seen together. Relatively small bills helped eliminate Trumpeter Swan, but too distant to make out yellow in lores.

Breeding Code
P Pair in Suitable Habitat (Probable)
X
Cinnamon Teal
X
Northern Shoveler
X
Gadwall
30
American Wigeon
X
Mallard
X
Northern Pintail
X
Green-winged Teal
2
Canvasback
Age & Sex
Juvenile Immature Adult Age Unknown
Male 1
Female 1
Sex Unknown
15
Redhead
5
Ring-necked Duck
X
Lesser Scaup
X
Bufflehead
1
Common Goldeneye
Age & Sex
Juvenile Immature Adult Age Unknown
Male 1
Female
Sex Unknown
1
Bufflehead x Common Goldeneye (hybrid)

Apparently only the fourth individual of this hybrid combination in eBird. Watched diving, at a pretty great distance. Sketch in field notes. Digiscoped and videoed, by RPO:

10a Bufflehead x Common Goldeneye hybrid frame grab

Sketch made in the field, from life:

Field sketch of hybrid Bufflehead x Common Goldeneye

Video here: http://www.flickr.com/photos/tsirtalis/6932146132
and here:
http://www.flickr.com/photos/tsirtalis/7078226753

Age & Sex
Juvenile Immature Adult Age Unknown
Male 1
Female
Sex Unknown
X
Ruddy Duck
1
Ring-necked Pheasant
5
Pied-billed Grebe
X
Eared Grebe
X
Western Grebe
4
Clark's Grebe
X
Western/Clark's Grebe
X
American Coot (Red-shielded)
X
Black-necked Stilt

Dozens to low hundreds.

X
American Avocet

Hundreds to maybe a thousand.

8
Killdeer
7
Long-billed Curlew

Actual count.

15
Marbled Godwit

Actual count.

2
Long-billed Dowitcher

Assumed to be Long-billed, the expected species here, but probably too distant to confidently rule out Short-billed Dowitcher.

3
Greater Yellowlegs
1
Bonaparte's Gull

In full breeding plumage.

Age & Sex
Juvenile Immature Adult Age Unknown
Male
Female
Sex Unknown 1
400
Franklin's Gull
X
Ring-billed Gull
X
California Gull
5
Caspian Tern
50
Double-crested Cormorant
X
American White Pelican
X
Great Blue Heron (Blue form)
1
Great Egret
4
Snowy Egret
X
White-faced Ibis
4
Northern Harrier
2
Common Raven
1000
Tree Swallow

Thousands, easily. This number is a very coarse estimate.

3
Bank Swallow
6
Barn Swallow
30
Cliff Swallow
200
Marsh Wren

Coarse estimate. About one every 50 feet for the entire loop.

5
Savannah Sparrow (Savannah)

Subspecies group assumed by location.

Breeding Code
S Singing Male (Possible)
5
Song Sparrow
Breeding Code
S Singing Male (Possible)
X
Yellow-headed Blackbird

Dozens.

X
Red-winged Blackbird

Dozens to hundreds.

Additional species seen by Anne Shifrer:
X
Great Blue Heron
5
Savannah Sparrow
 

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

Yes