Ross's Gull - Rhodostethia rosea

Black-bellied Whistling-Duck1
Fulvous Whistling-Duck2
Emperor Goose547
Pink-footed Goose512
Brant6
Brant (Atlantic)535
Brant (Black)536
Barnacle Goose514
Cackling Goose7
Cackling Goose (Aleutian)540
Cackling Goose (Ridgway's)542
Cackling x Ross' Goose525
Canada Goose (Dusky)543
Mute Swan544
Trumpeter Swan9
Tundra Swan10
Garganey21
Eurasian Wigeon13
Mallard16
Mexican Duck528
American Black Duck15
American Black Duck x Mallard522
Mottled Duck498
Green-winged Teal22
Tufted Duck26
Harlequin Duck29
Surf Scoter30
Black Scoter32
Long-tailed Duck33
Smew545
California Quail506
Wild Turkey54
Ruffed Grouse46
Dusky Grouse50
Horned Grebe61
Red-necked Grebe62
Band-tailed Pigeon198
Eurasian Collared-Dove199
Inca Dove202
Common Ground Dove203
White-winged Dove200
Groove-billed Ani207
Greater Roadrunner206
Black-billed Cuckoo205
Lesser Nighthawk222
Eastern Whip-poor-will225
Mexican Whip-poor-will226
Whip-poor-will sp.519
Black Swift227
Chimney Swift228
Vaux's Swift502
White-throated Swift229
Mexican Violetear230
Rivoli’s Hummingbird231
Blue-throated Mountain-gem232
Ruby-throated Hummingbird233
Black-chinned Hummingbird234
Anna's Hummingbird235
Costa's Hummingbird236
Calliope Hummingbird239
Broad-billed Hummingbird240
White-eared Hummingbird241
King Rail111
Common Gallinule115
Purple Gallinule114
Yellow Rail109
Black Rail110
Sandhill Crane117
Whooping Crane118
American Golden-Plover120
Piping Plover123
Mountain Plover125
Snowy Plover121
Upland Sandpiper133
Whimbrel135
Eskimo Curlew134
Hudsonian Godwit137
Ruddy Turnstone139
Red Knot140
Ruff153
Sharp-tailed Sandpiper148
Curlew Sandpiper150
Purple Sandpiper505
Baird's Sandpiper146
Least Sandpiper144
White-rumped Sandpiper145
Buff-breasted Sandpiper152
Pectoral Sandpiper147
Short-billed Dowitcher154
American Woodcock157
Red-necked Phalarope159
Red Phalarope160
Jaeger sp.517
Pomarine Jaeger192
Parasitic Jaeger193
Long-tailed Jaeger194
Long-billed Murrelet195
Ancient Murrelet196
Black-legged Kittiwake161
Ivory Gull162
Sabine's Gull163
Black-headed Gull165
Little Gull166
Ross's Gull167
Laughing Gull168
Franklin's Gull169
Mew Gull170
Western Gull172
Herring Gull174
Vega Gull538
Iceland Gull176
Lesser Black-backed Gull177
Slaty-backed Gull178
Glaucous-winged Gull179
Glaucous-winged Gull hybrid526
Great Black-backed Gull181
Kelp Gull182
Sooty Tern183
Least Tern184
Caspian Tern185
Arctic Tern188
Royal Tern190
Sandwich Tern496
Black Skimmer191
Red-throated Loon55
Arctic Loon56
Pacific Loon57
Yellow-billed Loon59
Short-tailed Albatross554
Wood Stork66
Magnificent Frigatebird67
Brown Booby504
Anhinga70
Neotropic Cormorant68
Brown Pelican72
Least Bittern74
Great Egret76
Little Blue Heron78
Tricolored Heron79
Reddish Egret80
Cattle Egret81
Yellow-crowned Night-Heron84
White Ibis85
Glossy Ibis86
White-faced X Glossy Ibis521
Roseate Spoonbill88
Black Vulture89
Osprey91
White-tailed Kite513
Swallow-tailed Kite92
Mississippi Kite94
Common Black Hawk100
Harris's Hawk101
Gray Hawk550
Red-shouldered Hawk102
Broad-winged Hawk103
Zone-tailed Hawk105
Red-tailed Hawk106
Red-tailed Hawk (Krider's)529
Rough-legged Hawk108
Western Screech-Owl210
Snowy Owl213
Spotted Owl216
Barred Owl217
Short-eared Owl219
Boreal Owl220
Northern Saw-whet Owl221
Red-headed Woodpecker244
Acorn Woodpecker245
Red-bellied Woodpecker246
Williamson's Sapsucker247
Yellow-bellied Sapsucker248
Red-naped Sapsucker249
Red-breasted Sapsucker507
Black-backed Woodpecker560
Pacific Downy Woodpecker539
Ladder-backed Woodpecker250
Arizona Woodpecker555
Gilded Flicker549
Crested Caracara255
Merlin257
Merlin (Black)541
Gyrfalcon258
Psittacidae sp.518
Rose-throated Becard559
Olive-sided Flycatcher261
Eastern Wood-Pewee263
Yellow-bellied Flycatcher264
Acadian Flycatcher265
Alder Flycatcher266
Least Flycatcher268
Hammond's Flycatcher269
Gray Flycatcher270
Pacific-slope Flycatcher546
Buff-breasted Flycatcher273
Black Phoebe274
Eastern Phoebe275
Vermilion Flycatcher277
Dusky-capped Flycatcher278
Great Crested Flycatcher280
Brown-crested Flycatcher281
Great Kiskadee495
Sulphur-bellied Flycatcher282
Tropical Kingbird508
Couch's Kingbird503
Thick-billed Kingbird284
Eastern Kingbird286
Scissor-tailed Flycatcher287
Fork-tailed Flycatcher511
Loggerhead Shrike288
White-eyed Vireo290
Bell's Vireo291
Gray Vireo292
Yellow-throated Vireo293
Cassin's Vireo295
Blue-headed Vireo296
Philadelphia Vireo298
Yellow-green Vireo515
Blue Jay303
Woodhouse's Scrub-Jay304
Mexican Jay558
Clark's Nutcracker306
Chihuahuan Raven308
Tree Swallow313
Purple Martin312
Cave Swallow499
Juniper Titmouse320
Canyon Wren328
House Wren329
Pacific Wren330
Winter Wren331
Sedge Wren332
Marsh Wren333
Carolina Wren334
Bewick's Wren335
Cactus Wren509
Eastern Bluebird340
Veery344
Gray-cheeked Thrush345
Swainson's Thrush346
Swainson's Thrush (Russet-backed)533
Hermit Thrush347
Wood Thrush348
Varied Thrush350
Gray Catbird351
Curve-billed Thrasher357
Brown Thrasher354
Long-billed Thrasher355
Bendire's Thrasher356
Northern Mockingbird352
Bohemian Waxwing361
Phainopepla363
Sprague's Pipit360
Brambling478
Gray-crowned Rosy-Finch479
Black Rosy-Finch480
Purple Finch483
Common Redpoll488
Hoary Redpoll497
Redpoll sp.520
Red Crossbill486
White-winged Crossbill487
Lawrence's Goldfinch491
European Goldfinch548
Zebra Finch553
Chestnut-collared Longspur365
Smith's Longspur366
McCown's Longspur367
Snow Bunting368
Cassin's Sparrow421
Grasshopper Sparrow434
Black-throated Sparrow430
Chipping Sparrow423
Clay-colored Sparrow424
Black-chinned Sparrow427
Field Sparrow426
Fox Sparrow (Red)530
Fox Sparrow (Slate-colored)531
Golden-crowned Sparrow446
White-throated Sparrow443
Sagebrush Sparrow431
LeConte's Sparrow437
Nelson's Sparrow438
Baird's Sparrow435
Henslow's Sparrow436
Savannah Sparrow433
Canyon Towhee420
Eastern Towhee418
Yellow-breasted Chat415
Bobolink461
Eastern Meadowlark463
Orchard Oriole472
Hooded Oriole473
Streak-backed Oriole474
Bullock's Oriole475
Baltimore Oriole476
Bullocks x Baltimore Oriole524
Scott's Oriole477
Bronzed Cowbird470
Great-tailed Grackle469
Ovenbird369
Worm-eating Warbler370
Louisiana Waterthrush371
Northern Waterthrush372
Golden-winged Warbler374
Blue-winged Warbler373
Brewster's Warbler523
Black-and-white Warbler375
Prothonotary Warbler376
Swainson's Warbler377
Tennessee Warbler378
Lucy's Warbler380
Virginia's Warbler382
Connecticut Warbler383
Mourning Warbler385
Kentucky Warbler386
Hooded Warbler388
Cape May Warbler390
Cerulean Warbler391
Northern Parula392
Tropical Parula393
Magnolia Warbler394
Bay-breasted Warbler395
Blackburnian Warbler396
Chestnut-sided Warbler398
Blackpoll Warbler399
Black-throated Blue Warbler400
Palm Warbler401
Pine Warbler402
Yellow-throated Warbler404
Prairie Warbler405
Grace's Warbler406
Hermit Warbler409
Golden-crowned Warbler510
Canada Warbler411
Red-faced Warbler413
Painted Redstart414
Hepatic Tanager448
Summer Tanager449
Scarlet Tanager450
Northern Cardinal452
Pyrrhuloxia453
Rose-breasted Grosbeak454
Lazuli Bunting457
Indigo Bunting458
Varied Bunting551
Painted Bunting459
Dickcissel460

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Accession No.

Year

Date(s)

County

Location

Observers

Photos

Audio

Photo


23-83-32 23-83-32	1983	4/28/1983 - 5/6/1983	Logan & Sedgwick	Jumbo Reservoir	Bill Prather, Barry G. Knapp, Robert Andrews	See Detail No	No	True

2007-75 2007-75	2007	10/28/2007	Boulder	Lagerman Res.	Bill Schmoker	No	No	False

2010-151 2010-151	2010	11/19/2010 - 11/23/2010	Arapahoe	Cherry Creek SP	Glenn Walbek, Peter Gent, Bill Maynard, Branon Percival, Bill Schmoker, Joe Roller, Cole Wild	Yes	No	True

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