species
2.
species
3.
species
4.
species
5.
species
6.
species
7.
species
9.
species
16.
species
17.
species
20.
species
22.
species
24.
species
27.
species
29.
species
30.
species
33.
species
34.
species
35.
species
36.
species
42.
species
43.
species
44.
species
45.
species
46.
species
51.
species
52.
species
54.
species
55.
species
56.
species
57.
species
58.
species
59.
species
61.
species
62.
species
63.
species
66.
species
68.
species
69.
species
70.
species
71.
species
73.
species
74.
species
81.
species
83.
species
86.
species
87.
species
92.
species
94.
species
97.
species
99.
species
100.
species
101.
species
102.
species
103.
species
104.
species
105.
species
106.
species
107.
species
110.
species
112.
species
113.
species
114.
species
115.
species
116.
species
117.
species
118.
species
119.
species
120.
species
121.
species
122.
species
123.
species
124.
species
125.
species
126.
species
127.
species
128.
species
129.
species
130.
species
131.
species
132.
species
133.
species
134.
species
135.
species
136.
species
137.
species
138.
species
139.
species
140.
species
141.
species
142.
species
143.
species
144.
species
145.
species
146.
species
147.
species
148.
species
149.
species
150.
species
152.
species
153.
species
154.
species
155.
species
156.
species
158.
species
159.
species
161.
species
162.
species
163.
species
164.
species
166.
species
167.
species
168.
species
169.
species
170.
species
171.
species
172.
species
173.
species
174.
species
176.
species
177.
species
178.
species
179.
species
180.
species
181.
species
182.
species
183.
species
184.
species
185.
species
186.
species
187.
species
188.
species
190.
species
191.
species
192.
species
193.
species
194.
species
195.
species
196.
species
197.
species
198.
species
199.
species
200.
species
201.
species
202.
species
203.
species
204.
species
205.
species
206.
species
207.
species
208.
species
209.
species
210.
species
213.
species
214.
species
215.
species
216.
species
217.
species
218.
species
219.
species
220.
species
221.
species
222.
species
223.
species
224.
species
225.
species
226.
species
227.
species
228.
species
229.
species
230.
species
231.
species
232.
species
233.
species
234.
species
235.
species
237.
species
238.
species
239.
species
240.
species
241.
species
242.
species
243.
species
244.
species
245.
species
246.
species
247.
species
248.
species
249.
species
250.
species
252.
species
253.
species
254.
species
255.
species
256.
species
257.
species
258.
species
259.
species
260.
species
262.
species
263.
species
264.
species
265.
species
266.
species
267.
species
269.
species
270.
species
271.
species
272.
species
273.
species
274.
species
276.
species
278.
species
279.
species
280.
species
281.
species
282.
species
283.
species
284.
species
285.
species
286.
species
287.
species
289.
species
290.
species
291.
species
292.
species
293.
species
294.
species
295.
species
297.
species
298.
species
299.
species
300.
species
301.
species
302.
species
303.
species
304.
species
305.
species
307.
species
308.
species
309.
species
310.
species
312.
species
313.
species
314.
species
317.
species
318.
species
319.
species
320.
species
322.
species
323.
species
324.
species
325.
species
326.
species
327.
species
328.
species
330.
species
331.
species
332.
species
334.
species
335.
species
337.
species
338.
species
340.
species
341.
species
342.
species
343.
species
344.
species
345.
species
346.
species
347.
species
350.
species
351.
species
352.
species
355.
species
357.
species
358.
species
359.
species
360.
species
361.
species
366.
species
367.
species
369.
species
370.
species
372.
species
373.
species
375.
species
376.
species
382.
species
383.
species
384.
species
386.
species
388.
species
392.
species
396.
species
398.
species
401.
species
402.
species
403.
species
405.
species
406.
species
407.
species
408.
species
410.
species
411.
species
412.
species
415.
species
416.
species
417.
species
418.
species
420.
species
423.
species
424.
species
426.
species
427.
species
428.
species
429.
species
431.
species
432.
species
433.
species
434.
species
437.
species
438.
species
439.
species
440.
species
441.
species
442.
species
443.
species
444.
species
445.
species
446.
species
447.
species
449.
species
450.
species
452.
species
453.
species
455.
species
456.
species
461.
species
463.
species
464.
species
465.
species
466.
species
467.
species
470.
species
471.
species
472.
species
473.
species
474.
species
475.
species
476.
species
477.
species
479.
species
480.
species
481.
species
482.
species
483.
species
484.
species
486.
species
487.
species
488.
species
489.
species
490.
species
492.
species
494.
species
495.
species
496.
species
500.
species
502.
species
503.
species
504.
species
506.
species
507.
species
508.
species
509.
species
510.
species
511.
species
512.
species
513.
species
514.
species
516.
species
517.
species
520.
species
521.
species
522.
species
527.
species
528.
species
530.
species
531.
species
533.
species
537.
species
538.
species
539.
species
540.
species
541.
species
543.
species
545.
species
547.
species
550.
species
551.
species
553.
species
554.
species
555.
species
556.
species
557.
species
558.
species
559.
species
560.
species
561.
species
562.
species
563.
species
566.
species
567.
species
568.
species
569.
species
570.
species
572.
species
573.
species
574.
species
575.
species
576.
species
579.
species
580.
species
581.
species
582.
species
583.
species
585.
species
586.
species
587.
species
588.
species
589.
species
591.
species
593.
species
596.
species
597.
species
599.
species
600.
species
601.
species
605.
species
607.
species
608.
species
609.
species
610.
species
613.
species
615.
species
617.
species
618.
species
619.
species
620.
species
624.
species
625.
species
626.
species
627.
species
631.
species
632.
species
633.
species
634.
species
635.
species
636.
species
639.
species
640.
species
641.
species
642.
species
643.
species
644.
species
645.
species
646.
species
650.
species
651.
species
652.
species
653.
species
654.
species
655.
species
657.
species
658.
species
659.
species
664.
species
666.
species
667.
species
668.
species
669.
species
670.
species
671.
species
672.
species
673.
species
674.
species
684.
species
685.
species
686.
species
687.
species
689.
species
690.
species
691.
Tufted Duck x scaup sp. (hybrid)
Gadwall x Mallard (hybrid)
Bufflehead x Common Goldeneye (hybrid)
Bufflehead x goldeneye sp. (hybrid)
Redhead x scaup sp. (hybrid)
Red-shouldered x Red-tailed Hawk (hybrid)
Tufted Duck x Lesser Scaup (hybrid)
Greater White-fronted x Cackling Goose (hybrid)
Tufted Duck x Greater Scaup (hybrid)
Cooper's Hawk x American Goshawk (hybrid)
Ring-necked Duck x scaup sp. (hybrid)
Dark-eyed Junco x White-throated Sparrow (hybrid)
Common Goldeneye x Hooded Merganser (hybrid)
Barnacle x Cackling Goose (hybrid)
Canvasback x Redhead (hybrid)
Gadwall x American Wigeon (hybrid)
Snow x Greater White-fronted Goose (hybrid)
goldeneye sp. x Hooded Merganser (hybrid)
Black-capped x Mountain Chickadee (hybrid)
White-crowned x White-throated Sparrow (hybrid)
Song x Swamp Sparrow (hybrid)
Golden-crowned x White-throated Sparrow (hybrid)
American Redstart x Magnolia Warbler (hybrid)
Rose-breasted x Black-headed Grosbeak (hybrid)
Red-naped x Red-breasted Sapsucker (hybrid)
Thick-billed x Common Murre (hybrid)
Common x Roseate Tern (hybrid)
Cinnamon Teal x Northern Shoveler (hybrid)
Chipping x Clay-colored Sparrow (hybrid)
Ruddy Turnstone x White-rumped Sandpiper (hybrid)
Glossy x White-faced Ibis (hybrid)
Bay-breasted x Blackburnian Warbler (hybrid)
Black-necked Stilt x American Avocet (hybrid)
Blue-winged x Green-winged Teal (hybrid)
Calliope x Rufous Hummingbird (hybrid)
King x Common Eider (hybrid)
American Wigeon x Green-winged Teal (hybrid)
Blue-winged Teal x Northern Shoveler (hybrid)
Surf x White-winged Scoter (hybrid)
Bufflehead x Hooded Merganser (hybrid)
Anna's x Rufous Hummingbird (hybrid)
Ring-necked Duck x Greater Scaup (hybrid)
Herring x Glaucous-winged Gull (hybrid)
Redhead x Lesser Scaup (hybrid)
Red-tailed x Rough-legged Hawk (hybrid)
Ring-necked Duck x Lesser Scaup (hybrid)
Canvasback x Ring-necked Duck (hybrid)
Steller's Jay x California Scrub-Jay (hybrid)
Bullock's x Baltimore Oriole (hybrid)
Tennessee x Nashville Warbler (hybrid)
Black-throated Gray x Townsend's Warbler (hybrid)
Townsend's x Hermit Warbler (hybrid)
MacGillivray's x Mourning Warbler (hybrid)
Cinnamon x Green-winged Teal (hybrid)
Northern Pintail x Green-winged Teal (hybrid)
Ross's x Cackling Goose (hybrid)
Gadwall x Northern Pintail (hybrid)
Wood Duck x Mallard (hybrid)
Lapland Longspur x Snow Bunting (hybrid)
Graylag x Swan Goose (hybrid)
White-crowned x Golden-crowned Sparrow (hybrid)
Barrow's Goldeneye x Hooded Merganser (hybrid)
Oriental Turtle-Dove x Eurasian Collared-Dove (hybrid)
Snow/Ross's x Cackling/Canada Goose (hybrid)
Barn x Cliff Swallow (hybrid)
Western x Clark's Grebe (hybrid)
Western x Eastern Meadowlark (hybrid)
Golden-winged x Blue-winged Warbler (hybrid)
Spotted x Eastern Towhee (hybrid)
Northern Shoveler x Gadwall (hybrid)
Townsend's x Black-throated Green Warbler (hybrid)
American Wigeon x Northern Pintail (hybrid)
Song x Lincoln's Sparrow (hybrid)
Mallard x Northern Pintail (hybrid)
Steller's x Blue Jay (hybrid)
Redhead x Ring-necked Duck (hybrid)
Herring x Lesser Black-backed Gull (hybrid)
Barnacle x Canada Goose (hybrid)
Black-chinned x Anna's Hummingbird (hybrid)
Black-chinned x Rufous Hummingbird (hybrid)
Yellow-bellied x Red-naped Sapsucker (hybrid)
Blue-winged x Cinnamon Teal (hybrid)
Dunlin x White-rumped Sandpiper (hybrid)
Chipping x Field Sparrow (hybrid)
Common x Barrow's Goldeneye (hybrid)
Pine Siskin x American Goldfinch (hybrid)
Ring-necked x Green Pheasant (hybrid)
Northern Shoveler x Mallard (hybrid)
Eastern x Mountain Bluebird (hybrid)
Mourning Warbler x Common Yellowthroat (hybrid)
Lawrence's Warbler (hybrid)
Wood Duck x Hooded Merganser (hybrid)
Snow x Canada Goose (hybrid)
American Wigeon x Mallard (hybrid)
Snow x Cackling Goose (hybrid)
Ring-necked x Tufted Duck (hybrid)
Clay-colored x Field Sparrow (hybrid)
Eurasian x American Wigeon (hybrid)
Herring x Glaucous Gull (hybrid)
Western x Glaucous-winged Gull (hybrid)
Graylag x Canada Goose (hybrid)
House x Eurasian Tree Sparrow (hybrid)
Redhead x Greater Scaup (hybrid)
Glaucous x Glaucous-winged Gull (hybrid)
Greater White-fronted x Canada Goose (hybrid)
Carolina x Black-capped Chickadee (hybrid)
Snow x Ross's Goose (hybrid)
Orange-crowned x Nashville Warbler (hybrid)
Great Black-backed x Glaucous Gull (hybrid)
Warbling x Red-eyed Vireo (hybrid)
Magnolia x Chestnut-sided Warbler (hybrid)
Magnolia x Yellow-rumped Warbler (hybrid)
Swan Goose x Canada Goose (hybrid)
Nashville x Magnolia Warbler (hybrid)
Magnolia x Black-throated Blue Warbler (hybrid)
Muscovy Duck x Mallard (hybrid)
Western x Eastern Kingbird (hybrid)
Lazuli x Indigo Bunting (hybrid)
Glaucous-winged x Slaty-backed Gull (hybrid)
Herring x Great Black-backed Gull (hybrid)
Brewster's Warbler (hybrid)
Mute x Trumpeter Swan (hybrid)
Yellow-bellied x Red-breasted Sapsucker (hybrid)
Herring x California Gull (hybrid)
Canvasback x scaup sp. (hybrid)
Buff-breasted x White-rumped Sandpiper (hybrid)
Sandhill x Common Crane (hybrid)
Violet-green x Cliff Swallow (hybrid)
White-rumped x Pectoral Sandpiper (hybrid)
Palm x Yellow-rumped Warbler (hybrid)
Wood x Mandarin Duck (hybrid)
Black-headed x Ring-billed Gull (hybrid)
Common x Hoary Redpoll (hybrid)
Laughing x Ring-billed Gull (hybrid)
Domestic goose sp. x Canada Goose (hybrid)
Greater Sage-Grouse x Sharp-tailed Grouse (hybrid)
Sharp-tailed Grouse x Greater Prairie-Chicken (hybrid)
Mallard x American Black Duck (hybrid)
Gadwall x Green-winged Teal (hybrid)
Bronzed/Brown-headed Cowbird
ptarmigan sp.
cormorant sp.
Sturnella meadowlark sp.
Tyrannus sp.
Myiarchus sp.
Eurasian/African Collared-Dove
Acanthis/Spinus sp.
yellow-bellied kingbird sp.
Western/Eastern Cattle Egret
Ruby-throated/Black-chinned Hummingbird
Pheucticus sp.
pygmy-owl/saw-whet owl sp.
Pallas's/Reed Bunting
Double-crested/Neotropic Cormorant
Connecticut/MacGillivray's/Mourning Warbler
Western/Eastern Wood-Pewee
Procellaria sp.
nighthawk sp.
lovebird sp.
Alder/Willow Flycatcher (Traill's Flycatcher)
Red/Red-necked Phalarope
phalarope sp.
Cassin's/Blue-headed Vireo
Spizella sp.
albatross sp.
King/Common Eider
Hen/Northern Harrier
large alcid sp.
Rose-breasted/Black-headed Grosbeak
Selasphorus sp.
Glossy/White-faced Ibis
Carolina/Black-capped Chickadee
Passer sp.
new world warbler sp.
Herring/Lesser Black-backed Gull
dabbling duck sp.
Downy/Hairy Woodpecker
Ring-necked/Green Pheasant
Rufous/Allen's Hummingbird
procellariid sp.
Western/Clark's Grebe
Taiga/Tundra Bean-Goose
merganser sp.
small swift sp.
Philadelphia/Warbling Vireo
LeConte's/Nelson's Sparrow
diurnal raptor sp.
black-and-white shearwater sp.
Sedge/Marsh Wren
Chlidonias sp.
Cory's/Great Shearwater
parrot sp.
Summer/Scarlet Tanager
Lazuli/Indigo Bunting
Haliaeetus/Icthyophaga sp.
Blue-winged/Cinnamon Teal
Antrostomus sp.
large falcon sp.
Townsend's/Hermit Warbler
sparrow/warbler sp. (trilling song)
Thick-billed/Common Murre
Common/Arctic Tern
Golden-winged/Blue-winged Warbler
Bullock's/Baltimore Oriole
Black-throated Gray/Townsend's Warbler
Black-bellied Plover/golden-plover sp.
Cassin's/Plumbeous Vireo
grebe sp.
Eastern/Chihuahuan Meadowlark
Trumpeter/Tundra Swan
Bohemian/Cedar Waxwing
American/Fish Crow
blackbird sp.
Great/Double-crested Cormorant
Tree/Olive-backed Pipit
Surf/Black Scoter
vireo sp. (Red-eyed Vireo complex)
Long-tailed/Pomarine Jaeger
Tree/Violet-green Swallow
pewee sp. (Contopus sp.)
Oceanites sp.
storm-petrel sp.
new world quail sp.
kingfisher sp.
old world quail sp.
rail/crake sp.
Ruffed/Spruce Grouse
Yellow-billed/Black-billed Cuckoo
Caprimulgus sp.
Great/Medium Egret
Western/Semipalmated Sandpiper
Phylloscopus sp.
Yellow-browed/Hume's Warbler
Striated/Green Heron
large rail sp.
Spizella sp./American Tree Sparrow
Mallard/Mexican Duck
white egret sp.
Long-tailed/Parasitic Jaeger
Louisiana/Northern Waterthrush
Lesser/Greater Yellowlegs
Tropical/Couch's Kingbird
Domestic goose sp. (Domestic type)
large tern sp.
Common/Rain Quail
Laughing/Franklin's Gull
loon sp.
Hammond's/Dusky Flycatcher
Cooper's Hawk/American Goshawk
White-winged/Stejneger's Scoter
Black-capped/Mountain Chickadee
Red-eyed/Yellow-green Vireo
Sooty/Bridled Tern
Forster's/Common Tern
small plover sp.
small bittern sp.
cuckoo sp. (Cuculidae sp.)
House/Eurasian Tree Sparrow
Loggerhead/Northern Shrike
Western/Glaucous-winged Gull
redpoll sp.
Yellow-legged/Lesser Black-backed Gull
murrelet sp.
Lincoln's/Swamp Sparrow
Snow/Ross's Goose
Common/Spotted Sandpiper
pigeon/dove sp.
Velvet/White-winged/Stejneger's Scoter
passerine sp.
Buteo/eagle sp.
Golden/Bald Eagle
Ruby-crowned/Golden-crowned Kinglet
King/Virginia Rail
nuthatch sp.
Sharp-shinned/Cooper's Hawk
Bay-breasted/Blackpoll Warbler
Scolopacidae sp.
Philadelphia/Red-eyed Vireo
new world vulture sp.
Red-naped/Red-breasted Sapsucker
Grasshopper/Henslow's Sparrow
Brown/Long-billed Thrasher
new world sparrow sp.
large swift sp.
Herring/Glaucous-winged Gull
Purple/Rock Sandpiper
Common/Barrow's Goldeneye
new world martin sp. (Progne sp.)
frigatebird sp.
Chimney/Vaux's Swift
White-crowned/White-throated Sparrow
Rusty/Brewer's Blackbird
shorebird sp.
Red-shouldered/Broad-winged Hawk
Western/Chihuahuan Meadowlark
Dryobates sp.
Snow/McKay's Bunting
Sharp-tailed/Pectoral Sandpiper
moorhen/coot/gallinule sp.
Common/Yellow-billed Loon
Tachycineta sp.
Varied Thrush/American Robin
Pterodroma sp.
tanager sp. (Piranga sp.)
Bullock's/Black-backed Oriole
King/Clapper Rail
crow/raven sp.
Sooty/Short-tailed Shearwater
golden-plover sp.
Leiothlypis sp.
Hydrobates sp.
Haemorhous sp.
House/Purple Finch
Yellow-crowned/Black-crowned Night Heron
Serinus sp.
Cliff/Cave Swallow
Chaetura sp.
large shorebird sp.
Parasitic/Pomarine Jaeger
Setophaga sp.
Streptopelia sp.
waterfowl sp.
whistling-duck sp.
nightjar sp.
Yellow-bellied/Red-naped Sapsucker
Northern Cardinal/Pyrrhuloxia
violetear sp.
Gray-cheeked/Bicknell's Thrush
Eastern/Mexican Whip-poor-will
hummingbird sp.
parakeet sp.
Long-eared/Short-eared Owl
Scripps's/Guadalupe Murrelet (Xantus's Murrelet)
large albatross sp.
Catharus sp.
American Three-toed/Black-backed Woodpecker
MacGillivray's/Mourning Warbler
Common Ringed/Semipalmated Plover
Boat-tailed/Great-tailed Grackle
Short-billed/Long-billed Dowitcher
Red/Black Kite
Cassin's/Western Kingbird
Cackling/Canada Goose
Boreal/Northern Saw-whet Owl
Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow)
Common/Hoary Redpoll
Siberian/Amur Stonechat
Mallard/American Black Duck
Passerina sp.
chickadee sp.
Common/Red-breasted Merganser
storm-petrel sp. (white-rumped)
Western/Eastern Meadowlark
bluebird sp.
Empidonax sp.
Spotted/Eastern Towhee (Rufous-sided Towhee)
American/Pacific Golden-Plover (Lesser Golden-Plover)
flamingo sp.
crossbill sp.
Eurasian/American Goshawk
Whimbrel/Eurasian Curlew