NBT Sizes vs. Federal Sizes | Species Table and Recommended Band Sizes

The table at the top may be used to find the National Band & Tag Company butt-end band style that matches the federal band size you are looking for. The table below is from the USGS Bird Banding Laboratory. If there is more than one size listed then the first one is the preferred recommended size.
This Size Chart should be used as a guide only!
We cannot be responsible for incorrect sizes being ordered based on this chart. Please measure your
bird’s leg for accurate sizing, if you are unsure we will gladly send samples.

Federal Size NB&T Size Inside Diameter (IN) Inside Diameter (MM)
0A None .078 1.98
0 None .083 2.11
1 1242-3 .094 2.39
1B None .109 2.77
1P None .112 2.84
1A 1242-4 .125 3.17
1D None .138 3.50
2 1242-5 .156 3.96
3 1242-6 .188 4.78
3B None .203 5.16
3A 1242-7 .219 5.56
4 1242-8 .250 6.35
4S 1242-8 .250 6.35
4A None .281 7.14
4AS None .281 7.14
5 1242-10 .313 7.95
5A None .344 8.73
6 1242-12 .375 9.53
7A 1242-14 .438 11.13
7AS 1242-14 .438 11.13
7 1242-16 .500 12.70
7B None .531 13.49
7BS None .531 13.49
None 1242-18 .563 14.30
None 1242-20 .625 15.88
8 1242-22 .688 17.48
None 1242-24 .750 19.05
8A None .813 20.65
9 1242-28 .875 22.23
9C None 1.125 28.58
Common Name Federal Band Size
Abert’s Towhee 1A, 2, 1D
Acadian Flycatcher 0A, 0
Acorn Woodpecker 2, 3
Adelaide’s Warbler 0A, 0
Adelie Penguin 9
African Collared-Dove 3A
African Penguin 9
African Silverbill 0, 1C, 1
Akekee 1B, 1C, 1
Akepa 0
Akiapolaau 1A
Akikiki 0, 1C, 1
Akohekohe 1A
Alaska Marbled Murrelet 3B, 3
Alder Flycatcher 0, 0A
Aleutian Canada Goose 7B
Aleutian Tern 2, 1A, 1D
Allen’s Hummingbird X
Altamira Oriole 3
American Avocet 4, 4A
American Bittern M: 7A
F: 6
American Black Duck 7A
American Black Duck Dominant X Mallard Hybrid 7A
American Coot 6, 5
American Crow 5
American Dipper 2, 1A, 1D
American Flamingo 8
American Golden-Plover 2, 3
American Goldfinch 0, 0A, 1C, 1
American Kestrel 3B, 3A, 3
American Oystercatcher 6, 5A, 5
American Pipit 1, 1C
American Redstart 0A, 0
American Robin 2
American Three-toed Woodpecker 2
American Tree Sparrow 0, 1C, 1
American White Pelican 9, 9C
American Wigeon 6
American Woodcock 3
Ancient Murrelet 3B, 3
Anhinga 8
Anianiau 0, 1C, 1
Anna’s Hummingbird X
Antarctic Petrel 5
Antarctic Tern 3
Antillean Crested Hummingbird X
Antillean Euphonia 0, 1C, 1
Antillean Mango X
Antillean Nighthawk 2, 1A, 1D
Apapane 1, 1C
Aplomado Falcon M: 4
F: 5
Arctic Loon 7B
Arctic Tern 2, 2A
Arctic Warbler 0A
Arizona Woodpecker 1A
Arrowhead Warbler 0A
Ash-throated Flycatcher 1B, 1, 1C
Ashy Storm-Petrel 1B
Ashy-faced Owl 6, 7A
Atlantic Brant 7B
Atlantic Puffin 5
Audubon’s Crested Caracara 7A, 7B
Audubon’s Oriole 2
Audubon’s Shearwater 3A, 3B
Audubon’s Warbler 0, 1C, 0A, 1
Aztec Thrush 2
Bachman’s Sparrow 1C, 1
Bahama Mockingbird 1A, 2, 1D
Bahama Oriole 1A, 1D, 2
Bahama Swallow 1C, 1, 0
Bahama Woodstar X
Bahama Yellowthroat 1, 1C
Baikal Teal 4A
Baird’s Sandpiper 1B, 1A
Baird’s Sparrow 1C, 1
Baja Gnatcatcher 0A
Bald Eagle 8A, 9
Baltimore Oriole 1A, 1B, 1D
Baltimore X Bullock’s Oriole Hybrid 1A
Bananaquit 0, 0A, 1C, 1
Band-rumped Storm-Petrel 2
Band-tailed Gull 5
Band-tailed Pigeon 5
Bank Swallow 0, 1C, 1, 0A
Bar-tailed Godwit M: 4
F: 4A
Barbuda Warbler 0A, 0
Barn Owl 6, 7A
Barn Swallow 0, 1C, 1
Barnacle Goose 7B
Barred Owl 7B, 7D
Barrow’s Goldeneye 7A
Bay-breasted Warbler 0, 1C, 0A, 1
Belding’s Savannah Sparrow 1C, 1
Bell’s Sparrow 1, 1C
Bell’s Vireo 0
Belted Kingfisher 3A, 3B, 3
Bendire’s Thrasher 2
Berylline Hummingbird X
Bewick’s Swan 9
Bewick’s Wren 1, 1C
Bicknell’s Thrush 1B
Bishop’s Oo 3
Black Brant 7A
Black Drongo 2
Black Guillemot 4
Black Noddy 2, 3
Black Oystercatcher 5
Black Phoebe 1C, 1
Black Rail 2, 1A, 1D
Black Rosy-Finch 1B
Black Scoter 7A
Black Skimmer 4, 3A
Black Storm-Petrel 1A
Black Swift 1A
Black Tern 2, 1A, 1D
Black Turnstone 2
Black Vulture 8V
Black X Atlantic Brant Intergrade 7A, 7B
Black-and-white Warbler 0, 0A, 1C, 1
Black-backed Wagtail 1, 1C
Black-backed Woodpecker 2
Black-bellied Plover 3B
Black-bellied Whistling-Duck 7A, 7
Black-billed Cuckoo 2
Black-billed Magpie 4, 3A, 3B
Black-browed Albatross 8
Black-capped Chickadee 0, 0A, 1C
Black-capped Gnatcatcher 0A
Black-capped Petrel 3
Black-capped Vireo 0, 1C, 1
Black-chinned Hummingbird X
Black-chinned Sparrow 0, 1C, 1
Black-cowled Oriole 1A, 1D, 2
Black-crested Titmouse 1B
Black-crowned Night-Heron 7A
Black-faced Grassquit 0, 0A, 1C, 1
Black-footed Albatross 7B
Black-headed Grosbeak 1A
Black-headed Gull 5
Black-headed Parakeet 4, 3A
Black-legged Kittiwake 4A
Black-naped Tern 2
Black-necked Stilt 3A, 4, 4A
Black-rumped Waxbill 0, 1C, 1
Black-tailed Gnatcatcher 0A
Black-tailed Godwit 4
Black-throated Blue Warbler 0, 0A
Black-throated Gray Warbler 0A, 0
Black-throated Green Warbler 0A, 0
Black-throated Sparrow 0, 1C, 1
Black-vented Oriole 2
Black-vented Shearwater 4
Black-whiskered Vireo 1C, 1
Black-winged Petrel 2
Blackburnian Warbler 0, 0A
Blackpoll Warbler 0, 1C, 0A, 1
Blue Bunting 1B, 1, 1C
Blue Goose 7B
Blue Greater Snow Goose 7B
Blue Grosbeak 1B, 1A
Blue Jay 2, 3
Blue Petrel 3
Blue-black Grassquit 0
Blue-crowned Lorikeet 2
Blue-eyed Cormorant 8
Blue-footed Booby 7A, 7B
Blue-gray Gnatcatcher 0A
Blue-gray Noddy 2
Blue-headed Vireo 1C, 1, 0
Blue-throated Hummingbird X
Blue-winged Teal 5, 4A
Blue-winged Warbler 0A, 0
Bluethroat 1, 1C
Boat-tailed Grackle M: 4
F: 3
Bobolink M: 1A, 1B
F: 1B, 1A
Bohemian Waxwing 1A
Bonaparte’s Gull 3, 3B
Bonin Petrel 3, 2
Boreal Chickadee 0, 0A
Boreal Owl 5, 6
Botteri’s Sparrow 1C, 1
Brambling 1B, 1, 1C
Brandt’s Cormorant 8
Brewer’s Blackbird 2
Brewer’s Sparrow 0, 1C, 0A, 1
Brewster’s Warbler 0A, 0
Bridled Quail-Dove 3A, 4
Bridled Tern 2
Bridled Titmouse 1, 1C
Bridled White-eye 0
Bristle-thighed Curlew 4A
Broad-billed Hummingbird X
Broad-billed Prion 3
Broad-tailed Hummingbird X
Broad-winged Hawk 5, 6
Bronze Mannikin 0A
Bronzed Cowbird M: 2
F: 1A, 1D
Brown Booby 7B
Brown Creeper 0A, 0
Brown Jay 4A, 4, 3
Brown Noddy 3
Brown Pelican 8A, 9, 8
Brown Shrike 2, 1A, 1D
Brown Skua 7A, 7B
Brown Thrasher 2, 3
Brown Trembler 3, 2
Brown-capped Rosy-Finch 1B
Brown-crested Flycatcher 1A
Brown-headed Cowbird M: 1A, 1D, 2, 1B
F: 1B, 1A, 1D
Brown-headed Nuthatch 0, 1C
Brown-throated Parakeet 3, 2
Buff-banded Rail 4
Buff-bellied Hummingbird X
Buff-breasted Flycatcher 0, 0A
Buff-breasted Sandpiper 1A
Buff-collared Nightjar 2
Bufflehead 5
Buller’s Albatross 8
Buller’s Shearwater 4
Bullock’s Oriole 1A, 1B, 1D
Bulwer’s Petrel 2, 3
Bumblebee Hummingbird X
Burrowing Owl 4
Bushtit 0A
Cackling Goose 7A
Cactus Wren 1B, 1A
California Condor 8V
California Gnatcatcher 0A
California Gull 5
California Least Tern 1A, 1B
California Spotted Owl 7B
California Thrasher 3
California Towhee 2, 1A, 1D
Calliope Hummingbird X
Canada Goose 8
Canada Warbler 0, 0A
Canvasback 7A
Canyon Towhee 2, 1A, 1D
Canyon Wren 1, 1C
Cape May Warbler 0, 0A, 1C, 1
Cape Petrel 4
Cape Sable Seaside Sparrow 1B
Cardinal Honeyeater 1, 1C
Caribbean Coot 6
Caribbean Dove 3A
Caribbean Elaenia 1, 1C, 0, 1B
Caribbean Martin 1A
Carolina Chickadee 0, 0A, 1C
Carolina Wren 1B, 1
Caspian Tern 5, 4A
Cassin’s Auklet 3B, 3A
Cassin’s Finch 1B, 1, 1C
Cassin’s Kingbird 1A
Cassin’s Sparrow 1C, 1
Cassin’s Vireo 1C, 1, 0
Cattle Egret 6
Cave Swallow 1C, 1
Cayenne Tern 3B
Cedar Waxwing 1B
Cerulean Warbler 0A, 0
Cherry-head Conure 4A
Chestnut-backed Chickadee 0
Chestnut-collared Longspur 1, 1C
Chestnut-sided Warbler 0A, 0
Chihuahuan Raven 5
Chimney Swift 1B, 1
Chinstrap Penguin 9
Chipping Sparrow 0, 0A, 1C, 1
Christmas Shearwater 4, 4A
Chuck-will’s-widow 3
Cinnamon Teal 5, 4A
Clapper Rail 5
Clark’s Grebe 7A, 7B
Clark’s Nutcracker 3B
Clay-colored Sparrow 0, 0A, 1C, 1
Clay-colored Thrush 2
Cliff Swallow 1, 1C
Cockatiel 4, 4A
Colima Warbler 1C, 1
Collared Kingfisher 2
Common Black Hawk 7A, 6
Common Canary 1, 1C
Common Chaffinch 1B, 1, 1C
Common Eider M: 7B, 7, 7A
F: 7A, 7, 7B
Common Gallinule 5, 6
Common Goldeneye 6, 7A
Common Grackle M: 3, 3B
F: 3, 2A
Common Ground-Dove 2
Common Loon 8, 8A, 9
Common Merganser 7A
Common Murre 6M, 6
Common Myna 3
Common Nighthawk 2, 1A, 1D
Common Pauraque 2
Common Pochard 6, 7A
Common Poorwill 1A, 2, 1D
Common Raven 6, 7A
Common Redpoll 0, 0A
Common Ringed Plover 1A, 1B
Common Rosefinch 1B, 1, 1C
Common Sandpiper 1B, 1, 1C
Common Tern 2A, 2
Common Tern X Roseate Tern Hybrid 2
Common Waxbill 0A, 0
Common Yellowthroat 0, 1C, 0A, 1
Connecticut Warbler 1C, 1, 0
Cook’s Petrel 3
Cooper’s Hawk M: 4, 4A, 5
F: 5, 6, 4A
Cordilleran Flycatcher 0, 0A
Cory’s Shearwater 4
Costa’s Hummingbird X
Couch’s Kingbird 1B, 1A
Craveri’s Murrelet 2
Crested Auklet 4
Crested Caracara M: 7A
F: 7B
Crested Myna 3, 2
Crested Tern 3, 3A
Crissal Thrasher 2
Cuban Grassquit 0
Cuban Oriole 1A, 1D, 2
Cuban Pewee 0, 1C, 1
Curlew Sandpiper 1A
Curve-billed Thrasher 3
Dark-eyed Junco 0, 1C, 1
Dark-sided Flycatcher 0
Dickcissel 1B
Double-crested Cormorant 8, 7B
Dove Prion 3
Dovekie 3
Downy Woodpecker 1B
Dunlin 1A, 1B
Dusky Flycatcher 0, 0A
Dusky Seaside Sparrow 1B
Dusky Thrush 2
Dusky Warbler 0A
Dusky-capped Flycatcher 1B, 1, 1C
Eared Dove 3A
Eared Grebe 5
Eared Quetzal 2
Eastern Bluebird 1B, 1, 1A
Eastern Kingbird 1B
Eastern Meadowlark M: 3
F: 2, 3
Eastern Phoebe 0, 1C, 1
Eastern Screech-Owl 5, 4A, 4
Eastern Towhee M: 2, 1D, 1A
F: 1A, 1D, 2
Eastern Whip-poor-will 1A, 2, 1D
Eastern White-crowned Sparrow 1B
Eastern Wood-Pewee 0, 0A, 1C, 1
Eastern Yellow Wagtail 1, 1C
Elegant Tern 3
Elegant Trogon 1A, 2, 1D
Elf Owl 2
Elfin-woods Warbler 0A
Emperor Goose 7B
Emperor Penguin 9
Eurasian Bullfinch 1B, 1A
Eurasian Collared-Dove 4A, 4
Eurasian Dotterel 1B, 1A
Eurasian Kestrel 3B, 4
Eurasian Tree Sparrow 1, 1B, 1C
Eurasian Wigeon 6
Eurasian Woodcock 3
European Golden-Plover 2, 3
European Goldfinch 0
European Green-winged Teal 4, 4A
European Starling 2, 3
Evening Grosbeak 1A, 2, 1D
Eyebrowed Thrush 2
Fairy Penguin 9
Fairy Prion 3
Falcated Teal 4A
Fan-tailed Warbler 1B, 1, 1C
Ferruginous Hawk 7D, 8, 7B
Ferruginous Pygmy-Owl 3
Field Sparrow 0, 0A, 1C, 1
Fieldfare 2
Fiji Shrikebill 2
Fish Crow 4A
Five-striped Sparrow 1B
Flame-colored Tanager 1B, 1A
Flammulated Owl 3, 3B, 2
Flesh-footed Shearwater 4
Florida Grasshopper Sparrow 1C, 1
Florida Scrub-Jay 3, 2
Fork-tailed Flycatcher 1B, 1, 1C
Fork-tailed Storm-Petrel 1B, 1A
Forster’s Tern 3
Fox Sparrow 1A, 1B
Franklin’s Gull 4
Fulvous Whistling-Duck 7A, 7
Gadwall 6
Galapagos Penguin 9
Gambel’s White-crowned Sparrow 1B
Garganey 4A
Gentoo Penguin 9
Gila Woodpecker 2, 3
Gilded Flicker 3
Glaucous Gull 7A
Glaucous-winged Gull 7A
Glossy Ibis 6
Golden Eagle 9, 9A, 9C
Golden White-eye 0
Golden-cheeked Warbler 0A
Golden-crowned Kinglet 0A
Golden-crowned Sparrow 1B, 1A
Golden-crowned Warbler 1C, 0, 1
Golden-fronted Woodpecker 2
Golden-winged Warbler 0A, 0
Golden-winged x Blue-winged Warbler Hybrid 0A, 0
Grace’s Warbler 0A
Grasshopper Sparrow 1C, 1, 0
Gray Bunting 1B
Gray Catbird 1A
Gray Flycatcher 0, 0A
Gray Hawk 6, 7A
Gray Jay 3, 2
Gray Kingbird 1A, 1D, 1B
Gray Vireo 1, 1C
Gray Wagtail 1, 1C
Gray-backed Storm-Petrel 1A
Gray-backed Tern 2
Gray-breasted Martin 1A
Gray-cheeked Thrush 1B
Gray-crowned Rosy-Finch 1B
Gray-crowned Yellowthroat 1, 1C, 1B
Gray-headed Albatross 8
Gray-headed Chickadee 1C, 0, 1
Gray-headed Junco 0, 1C, 1
Gray-streaked Flycatcher 0, 1C, 1
Gray-tailed Tattler 2, 3
Great Black-backed Gull 7B, 7A
Great Blue Heron 7B
Great Cormorant 8
Great Crested Flycatcher 1A, 1B
Great Egret 7A, 7B
Great Frigatebird 7B, 7A
Great Gray Owl 8
Great Horned Owl 8, 8A, 9, 7D
Great Kiskadee 2
Great Shearwater 5, 6, 5R
Great Skua 7A, 7B
Great White Heron 8
Great-tailed Grackle M: 4
F: 3
Greater Akialoa 1C, 1
Greater Antillean Bullfinch 1B
Greater Antillean Elaenia 0A
Greater Antillean Grackle 3, 2
Greater Necklaced Laughingthrush 2
Greater Pewee 1B
Greater Roadrunner 5
Greater Scaup 6, 5
Greater Snow Goose 7B
Greater White-fronted Goose 7B, 8
Greater Yellowlegs 3, 3B
Green Heron 5, 6, 4A
Green Jay 2
Green Kingfisher 2, 1A, 1D
Green Mango X
Green Violetear X
Green-breasted Mango X
Green-tailed Towhee 1B, 1A
Green-throated Carib X
Green-winged Teal 4, 4A
Greenish Elaenia 0A, 0
Groove-billed Ani 3A, 3B, 3
Guadalupe Murrelet 2, 2A
Guam Micronesian Kingfisher 3
Guam Swiftlet 0A, X
Guanay Cormorant 8
Gull-billed Tern 3B
Gyrfalcon 7B
Hairy Woodpecker 1A, 2, 1D
Hammond’s Flycatcher 0, 0A
Harlan’s Hawk 7B, 7A
Harlequin Duck 5
Harris’s Hawk 7A, 7B, 6
Harris’s Sparrow 1A
Hawaii Amakihi 1, 1B
Hawaii Creeper 0, 1C, 1
Hawaii Elepaio 1C, 0, 1
Hawaiian Coot 6, 5
Hawaiian Crow 6
Hawaiian Duck 6, 7A
Hawaiian Gallinule 5, 6
Hawaiian Goose 7B, 8
Hawaiian Hawk 7A
Hawaiian Petrel 4, 3A
Hawaiian Stilt 4
Hawfinch 1A, 2, 1D
Heermann’s Gull 4A
Henslow’s Sparrow 0, 1C, 1
Hepatic Tanager 1A
Hermit Thrush 1B, 1, 1C
Hermit Warbler 0A
Herring Gull 6, 7A
Hill Myna 2
Hispaniolan Oriole 1A, 1D, 2
Hispaniolan Parakeet 3A, 3B
Hispaniolan Parrot 4A, 4
Hispaniolan Pewee 0, 1C, 1
Hoary Redpoll 0, 0A
Hooded Merganser 5, 5A, 6
Hooded Oriole 1A, 1B
Hooded Warbler 0, 1C, 1
Hook-billed Kite 6, 7A
Horned Grebe 6, 5
Horned Lark 1B
Horned Puffin 5
House Finch 1B, 1, 1C
House Sparrow 1B
House Wren 0, 0A, 1C, 1
Hudsonian Godwit 3A
Humboldt Penguin 9
Hutton’s Vireo 0
Hwamei 2
Hybrid Albatross 7B, 8
Hybrid Chickadee 0, 1C, 1
Hybrid Gull 6, 7A
Hybrid Hummingbird X
Hybrid Nonpasserine 2, 3, 3A, 3B, 4
Hybrid Passerine 0, 0A, 1, 1A, 1B, 1C, 1D, 2
Hybrid Sapsucker 1A, 1B, 2, 1D
Hybrid Skua 7A, 7B
Hybrid Tern 2, 2A
Hybrid Towhee 1A, 1B
Hybrid Warbler 0, 0A, 1
Hybrid Western/Mountain Bluebird 1B, 1A
Iceland Gull 6
Iiwi 1B
Inca Dove 2, 3
Indigo Bunting 1, 1C, 0
Indigo X Lazuli Bunting Hybrid 1C, 1
Interior Least Tern 1A, 1B
Inyo California Towhee 1A, 2, 1D
Ipswich Sparrow 1B, 1
Island Scrub-Jay 3B, 3
Ivory Gull 4
Ivory-billed Woodpecker 4
Jamaican Crow 6
Jamaican Elaenia 0A
Jamaican Euphonia 0A
Jamaican Mango X
Jamaican Oriole 2
Jamaican Pewee 0, 1C, 1
Jamaican Tody 0
Jamaican Vireo 0
Japanese Bush-Warbler M: 1, 1C
F: 0, 1C
Japanese White-eye 0A, 0
Java Sparrow 1A, 1B
Juan Fernandez Petrel 3
Jungle Myna 3
Juniper Titmouse 1, 1C
Kakawahie 0, 1C, 1
Kamao 1A
Kauai Amakihi 1, 1B, 1A, 1C
Kauai Elepaio 1C, 0, 1
Kauai Oo 2
Kentucky Warbler 1C, 1
Kerguelen Petrel 4
Kerguelen Tern 3
Key West Quail-Dove 3A, 4
Killdeer 2, 2A
King Eider 7A, 6
King Penguin 9
King Rail 5
Kirtland’s Warbler 1C, 1
Kittlitz’s Murrelet 3B
La Sagra’s Flycatcher 1B
Ladder-backed Woodpecker 1A, 1B
Lanceolated Warbler 0A
Lapland Longspur 1, 1B
Large Canada Goose 8
Large-billed Sparrow 1C, 1
Lark Bunting 1A
Lark Sparrow 1B
Laughing Gull 4A, 4, 5
Lavender Waxbill 0, 1C, 1
Lawrence’s Goldfinch 0, 0A, 1C, 1
Lawrence’s Warbler 0A, 0
Laysan Albatross 7B
Laysan Duck 5
Laysan Finch 1A
Lazuli Bunting 1C, 1, 0
Le Conte’s Sparrow 1C, 1, 0
Le Conte’s Thrasher 2
Leach’s Storm-Petrel 1B, 1A
Least Auklet 2, 3
Least Bell’s Vireo 0
Least Bittern 4
Least Flycatcher 0, 0A
Least Grebe 4
Least Sandpiper 1, 1B, 1C
Least Storm-Petrel 1B
Least Tern 1A, 1B
Lesser Antillean Bullfinch 1B, 1, 1C
Lesser Antillean Flycatcher 1B
Lesser Antillean Pewee 0, 1C, 1
Lesser Black-backed Gull 6
Lesser Frigatebird 7A
Lesser Golden-Plover 2, 3
Lesser Goldfinch 0A, 0
Lesser Nighthawk 1A, 2, 1D
Lesser Sand-Plover 3
Lesser Scaup 6, 5
Lesser Sheathbill 7A
Lesser Snow Goose 7B
Lesser White-fronted Goose 7A
Lesser Yellowlegs 2, 2A
Lewis’s Woodpecker 3, 2
Light-mantled Albatross 8
Limpkin 6
Lincoln’s Sparrow 1C, 0, 1
Little Blue Heron 6
Little Bunting 1C, 1
Little Gull 3
Little Shearwater 4
Little Tern 1A
Loggerhead Kingbird 1B, 1A
Loggerhead Shrike 1D, 1A, 2
Long-billed Curlew 5, 6
Long-billed Dowitcher 2, 2A
Long-billed Murrelet 3B, 3
Long-billed Thrasher 2
Long-eared Owl 5, 6
Long-tailed Cuckoo 3, 3A, 3B
Long-tailed Duck 5, 6
Long-tailed Jaeger 4A, 4
Long-toed Stint 1, 1B
Louisiana Waterthrush 1C, 1
Lucifer Hummingbird X
Lucy’s Warbler 0A
MacGillivray’s Warbler 1C, 1, 0, 0A
Macaroni Penguin 9
Magellan Gull 5
Magellanic Penguin 9
Magnificent Frigatebird 7B, 7A
Magnificent Hummingbird X
Magnolia Warbler 0A, 0
Mallard 7A
Mallard Dominant X American Black Duck Hybrid 7A
Mallard X American Black Duck Hybrid 7A
Mallard X American Black Duck Intermediate 7A
Mallard X Hawaiian Duck Hybrid 7A, 6
Mangrove Cuckoo 2, 3, 3B
Manx Shearwater 4A, 4
Many-colored Fruit Dove 3, 3A, 3B
Marbled Godwit 4
Marbled Murrelet 3B, 3
Mariana Common Moorhen 5, 6
Mariana Crow 4A
Mariana Fruit Dove 3
Mariana Swiftlet 0
Marsh Sandpiper 1A
Marsh Wren 1C, 1, 0
Masked Booby 7B, 8
Masked Duck 5
Maui Alauahio 1C, 1
Maui Parrotbill 1B, 1A
McCown’s Longspur 1, 1C
McKay’s Bunting 1B
Merlin M: 3, 3B, 3A
F: 4, 3A, 3B
Mew Gull 4A, 4, 5
Mexican Chickadee 0
Mexican Duck 7A
Mexican Jay 3A
Mexican Spotted Owl 7B
Mexican Whip-poor-will 1A, 2, 1D
Micronesian Honeyeater 2
Micronesian Kingfisher 3
Micronesian Megapode 6
Micronesian Starling 3, 2
Middendorff’s Grasshopper-Warbler 0A
Millerbird 0A
Mississippi Kite 5
Mississippi Sandhill Crane 8
Monk Parakeet 4
Mottled Duck 7A
Mottled Petrel 3
Mountain Bluebird 1B, 1A
Mountain Chickadee 0, 0A
Mountain Plover 2, 3
Mountain White-crowned Sparrow 1B
Mourning Dove 3A, 3B
Mourning Warbler 0, 1C, 1
Murphy’s Petrel 3, 3A, 3B
Muscovy Duck 7B, 7A
Mute Swan 9C
Myrtle Warbler 0, 1C, 0A, 1
Nashville Warbler 0A, 0
Nazca Booby 7B, 8
Nelson’s Sparrow 1, 1B, 1C
Neotropic Cormorant 7A
Newell’s Shearwater 4
Nightingale Reed Warbler 1A
Nihoa Finch 1B, 1A
Northern Beardless-Tyrannulet 0A, 0
Northern Cardinal 1A, 2, 1D
Northern Flicker 3, 3B
Northern Fulmar 6
Northern Gannet 8
Northern Giant Petrel 8
Northern Goshawk M: 6, 7A
F: 7A, 7B
Northern Harrier M: 4, 4A
F: 5, 5A, 6
Northern Hawk Owl 7A, 7B
Northern Jacana 3A
Northern Lapwing 5
Northern Mockingbird 2, 1A, 1D
Northern Parula 0A, 0
Northern Pintail 6
Northern Pygmy-Owl 3, 3A, 4
Northern Rough-winged Swallow 0, 1C, 1, 0A
Northern Saw-whet Owl 4, 3A, 4A
Northern Shoveler 5, 6
Northern Shrike 2
Northern Spotted Owl 7B
Northern Waterthrush 1C, 0, 1
Northern Wheatear 1B
Northwestern Crow 4, 4A
Nukupuu 1C, 1
Nuttall’s White-crowned Sparrow 1B
Nuttall’s Woodpecker 1A, 1B
Nutting’s Flycatcher 1B
Oahu Alauahio 0, 1C, 1
Oahu Amakihi 1, 1B, 1A, 1C
Oahu Elepaio 1
Oak Titmouse 1, 1C
Olive Sparrow 1, 1B, 1C
Olive Warbler 0
Olive-backed Pipit 1, 1C
Olive-capped Warbler 0A
Olive-sided Flycatcher 1, 1B, 1C
Olomao 1A
Omao 1A
Orange-billed Nightingale-Thrush 1B
Orange-cheeked Waxbill 0, 1C, 1
Orange-crowned Warbler 0, 0A
Orange-fronted Parakeet 3, 2
Orange-winged Parrot 4A, 4
Orangequit 1C, 1
Orchard Oriole 1B
Oregon Junco 0, 1C, 1
Oriental Greenfinch 0, 1C, 1
Osprey 8
Other Hybrid Duck 7A, 5, 6
Other Hybrid Goose 8, 7A, 7B
Ou 2
Ovenbird 1C, 1, 0
Pacific Golden-Plover 2, 3
Pacific Loon 7B
Pacific Pigeon 4
Pacific Reef Heron 7A
Pacific Wren 0A, 0
Pacific-slope Flycatcher 0, 0A
Painted Bunting 1C, 1
Painted Redstart 0A, 0
Palila 2
Pallas’s Bunting 1, 1C
Parakeet Auklet 4
Parasitic Jaeger 4A
Pearly-eyed Thrasher 3, 2
Pechora Pipit 1, 1C
Pectoral Sandpiper 1A, 1D, 2
Pelagic Cormorant 7B, 7A
Peregrine Falcon M: 6
F: 7A, 7B
Phainopepla 1B
Philadelphia Vireo 0, 0A
Philippine Turtle-Dove 3
Phoenix Petrel 4, 3A
Pied-billed Grebe 5, 6
Pigeon Guillemot 4A
Pileated Woodpecker 4, 3A
Pin-tailed Snipe 3
Pin-tailed Whydah 1B, 1A
Pine Grosbeak 1A
Pine Siskin 0, 0A
Pine Warbler 0, 0A
Pink-footed Goose 7B
Pink-footed Shearwater 4
Pinyon Jay 3, 2
Piping Plover 1A, 1B
Plain Pigeon 5
Plain Titmouse 1
Plain-capped Starthroat X
Plumbeous Vireo 1C, 1, 0
Polynesian Starling 2
Pomarine Jaeger 5
Poo-uli 1B
Prairie Falcon M: 6, 5
F: 7A, 6
Prairie Warbler 0A, 0
Prothonotary Warbler 0
Puaiohi 1A
Puerto Rican Broad-winged Hawk 5
Puerto Rican Bullfinch 1A, 1B
Puerto Rican Emerald X
Puerto Rican Flycatcher 1B, 1A, 1
Puerto Rican Lizard-Cuckoo 4, 3A
Puerto Rican Nightjar 2, 1A, 1D
Puerto Rican Oriole 1A, 1D, 2
Puerto Rican Parrot 4A, 4
Puerto Rican Plain Pigeon 5
Puerto Rican Screech-Owl 4, 5
Puerto Rican Sharp-shinned Hawk M: 2, 3
F: 3, 3B
Puerto Rican Tanager 1B
Puerto Rican Tody X, 0A, 0
Puerto Rican Vireo 1, 1C
Puerto Rican Woodpecker 2, 3
Puget Sound White-crowned Sparrow 1B
Purple Finch 1, 1C, 1B
Purple Gallinule 4, 5
Purple Martin 1A, 2, 1D
Purple Sandpiper 1A, 2
Purple Swamphen 4
Purple-capped Fruit Dove 4
Pygmy Nuthatch 0, 1C
Pyrrhuloxia 1A
Razorbill 5R
Red Avadavat 0, 1C, 1
Red Bishop 0A
Red Crossbill 1B, 1A
Red Knot 2, 2A
Red Phalarope 1A
Red Siskin 0
Red-bellied Woodpecker 2
Red-billed Leiothrix 1B
Red-billed Pigeon 5
Red-billed Tropicbird 4A
Red-breasted Merganser 6, 5
Red-breasted Nuthatch 0, 1C, 1
Red-breasted Sapsucker 1A, 1B
Red-cheeked Cordonbleu 1C, 1
Red-cockaded Woodpecker 1A
Red-crested Cardinal 2
Red-crowned Parrot 4A, 4
Red-eyed Vireo 1C, 1, 0
Red-faced Cormorant 8
Red-faced Warbler 0A
Red-flanked Bluetail 0
Red-footed Booby 7B, 7A
Red-headed Woodpecker 2
Red-legged Kittiwake 4A
Red-legged Thrush 2
Red-naped Sapsucker 1A, 1B
Red-necked Grebe 7A, 7B
Red-necked Phalarope 1B
Red-necked Stint 1, 1B, 1C
Red-shafted Flicker 3, 3B
Red-shouldered Hawk 6, 7A, 5
Red-tailed Hawk 7B, 7D, 7A
Red-tailed Tropicbird 5
Red-throated Loon 7B
Red-throated Pipit 1, 1C
Red-vented Bulbul 2, 1A, 1D
Red-whiskered Bulbul 1B, 1A
Red-winged Blackbird M: 2, 1D
F: 1A, 1D
Reddish Egret 7A
Redhead 6
Redwing 2, 1A, 1D
Reed Bunting 1, 1C
Rhinoceros Auklet 5, 6
Ridgway’s Rail 5
Ring-billed Gull 5, 4A
Ring-necked Duck 6
Ringed Kingfisher 4
Roadside Hawk 5
Rock Sandpiper 2
Rock Wren 1, 1C, 0
Rockhopper Penguin 9
Rose-breasted Grosbeak 1A, 2, 1D
Rose-throated Becard 1B, 1, 1C
Roseate Spoonbill 7B
Roseate Tern 2, 2A
Ross’s Goose 7B
Ross’s Gull 3
Rota White-eye 0
Rough-legged Hawk M: 7A, 7B
F: 7B, 7A, 7D
Royal Albatross 8
Royal Penguin 9
Royal Tern 4, 4A
Ruby-crowned Kinglet 0A
Ruby-throated Hummingbird X
Ruddy Duck M: 7A
F: 6
Ruddy Ground-Dove 2
Ruddy Quail-Dove 4
Ruddy Turnstone 2, 2A, 3
Rufa Red Knot 2, 2A
Ruff 3B, 3
Rufous Fantail 0
Rufous Hummingbird X
Rufous-backed Robin 2
Rufous-capped Warbler 1, 1C
Rufous-collared Sparrow 0
Rufous-crowned Sparrow 1, 1C, 1B
Rufous-tailed Hummingbird X
Rufous-throated Solitaire 1, 1C
Rufous-winged Sparrow 0, 1C, 1
Rustic Bunting 1, 1C
Rusty Blackbird 2
Sabine’s Gull 3
Sad Flycatcher 1C, 1
Saffron Finch 1C, 1
Sage Thrasher 1B, 1A
Sagebrush Sparrow 1, 1C
Saltmarsh Sparrow 1, 1B, 1C
Samoan Starling 4, 3A
San Clemente Bell’s Sparrow 1
San Clemente Loggerhead Shrike 1D, 1A, 2
Sanderling 1A
Sandhill Crane 8, 9
Sandwich Tern 3B
Savannah Sparrow 1C, 1, 0
Say’s Phoebe 1C, 1
Scaly-breasted Munia 0A, 0
Scaly-naped Pigeon 5
Scarlet Ibis 6
Scarlet Tanager 1B
Scissor-tailed Flycatcher 1A
Scott’s Oriole 1A
Scripps’s Murrelet 2, 2A
Seaside Sparrow 1B
Sedge Wren 0A, 0
Semipalmated Plover 1A, 1B
Semipalmated Sandpiper 1B, 1
Sharp-shinned Hawk M: 2, 3
F: 3A, 3B, 3
Sharp-tailed Sandpiper 1A
Shiny Cowbird 2
Short-billed Dowitcher 2, 2A
Short-eared Owl 6
Short-tailed Albatross 8
Short-tailed Hawk 6
Short-tailed Shearwater 4
Short-tailed Swift 1B, 1, 1C
Shy Albatross 8
Shy Ground Dove 3, 3A, 3B
Siberian Accentor 0A
Siberian Rubythroat 1B, 1, 1C
Sky Lark 1B
Slate-colored Junco 0, 1C, 1
Slate-throated Redstart 0A
Slaty-backed Gull 7A
Small Canada Goose 7B
Smith’s Longspur 1, 1C
Smooth-billed Ani 3A
Snail Kite 6
Snow Bunting 1A, 1B
Snow Petrel 4
Snow X Blue Goose Intergrade 7B
Snow X Ross’s Goose Hybrid 7B
Snowy Egret 6
Snowy Owl 8A, 8, 9
Snowy Plover 1P
Snowy Sheathbill 7A
Solitary Sandpiper 1A, 2, 1B
Solitary Vireo 1C, 1, 0
Song Sparrow 1B, 1, 1C
Sooty Albatross 8
Sooty Shearwater 4, 5
Sooty Tern 3
Sora 2, 2A
South Polar Skua 7A, 7B
Southern Black-backed Gull 7B
Southern Fulmar 5
Southern Giant Petrel 8
Southern House Wren 0
Southwestern Willow Flycatcher 0, 0A
Spectacled Eider 7A, 6
Spoon-billed Sandpiper 1A
Spot-breasted Oriole 2
Spotted Dove 4, 3A
Spotted Owl 7B
Spotted Sandpiper 1B, 1A
Spotted Towhee 1A, 2, 1D
Spotted X Barred Owl Hybrid 7B
Sprague’s Pipit 1, 1C
St Lucia Warbler 0A, 0
Stejneger’s Petrel 3
Steller’s Eider 6, 7A
Steller’s Jay 3, 2, 3B
Stilt Sandpiper 1A
Stolid Flycatcher 1B
Streak-backed Oriole 1A
Streaked Horned Lark 1B
Streaked Shearwater 3B
Streamertail X
Sulphur-bellied Flycatcher 1B
Summer Tanager 1A, 1B
Surf Scoter 7A
Surfbird 2
Sutton’s Warbler 0A
Swainson’s Hawk M: 7A, 6
F: 7A, 7B
Swainson’s Thrush 1B
Swainson’s Warbler 1C, 1
Swallow-tailed Kite 6
Swamp Sparrow 1, 1C, 0
Swinhoe’s Snipe 3
Tahiti Petrel 4
Taiga Bean-Goose 7B, 8
Taiga Flycatcher 0
Tamaulipas Crow 4
Tawny-shouldered Blackbird 1B, 1A
Tennessee Warbler 0A, 0
Thayer’s Gull 6
Thick-billed Kingbird 1A
Thick-billed Murre 6M, 5R, 6, 5
Thick-billed Parrot 4A, 4
Thick-billed Vireo 1C, 1
Thin-billed Prion 3
Tinian Monarch 1, 1C
Townsend’s Shearwater 4
Townsend’s Solitaire 1B
Townsend’s Warbler 0A, 0
Townsend’s X Hermit Warbler Hybrid 0A, 0
Traill’s Flycatcher 0, 0A
Tree Swallow 1, 0, 1C
Tricolored Blackbird 2
Tricolored Heron 6
Tricolored Munia 0, 1C, 1
Tristram’s Storm-Petrel 2
Tropical Kingbird 1A
Tropical Mockingbird 2, 1A, 1D
Tropical Parula 0A
Tropical Shearwater 3A, 3B
Trumpeter Swan 9, 9C
Tufted Duck 5
Tufted Puffin 6, 5
Tufted Titmouse 1B
Tule White-fronted Goose 8
Turkey Vulture 8V
Unidentified Common/Hoary Redpoll 0
Unidentified Empidonax 0A, 0
Unidentified Gray-cheeked/Bicknell’s Thrush 1B
Unidentified Gull 5
Unidentified Hummingbird X
Unidentified Rufous-sided Towhee 2, 1A, 1D
Unidentified Sharp-tailed Sparrow 1, 1B, 1C
Unidentified Teal 5, 4A
Unspecified Sage Sparrow 1, 1C
Upland Sandpiper 3
Varied Bunting 1C, 1
Varied Thrush 2
Varied Tit 1B, 1, 1C
Vaux’s Swift 1C, 1
Veery 1B
Venezuelan Troupial 3
Verdin 0A
Vermilion Flycatcher 0, 0A, 1C, 1
Vesper Sparrow 1B, 1, 1C
Victoria Penguin 9
Violet-crowned Hummingbird X
Violet-green Swallow 1, 0, 1C
Virginia Rail 2, 3
Virginia’s Warbler 0A
Wandering Albatross 8
Wandering Tattler 3, 2
Warbling Vireo 0, 1C, 1
Wattled Honeyeater 2
Waved Albatross 8
Wedge-rumped Storm-Petrel 1B
Wedge-tailed Shearwater 5, 4A
West Indian Whistling-Duck 7B, 8
West Indian Woodpecker 2
Western Bluebird 1B
Western Flycatcher 0, 0A
Western Grebe 7B, 7, 7A
Western Gull 6, 7A
Western Kingbird 1A, 1B
Western Meadowlark M: 3
F: 2, 3
Western Palm Warbler 0, 0A
Western Sandpiper 1B, 1
Western Screech-Owl 5, 4A, 4
Western Scrub-Jay 2, 3
Western Snowy Plover 1P
Western Spindalis 1B, 1A
Western Tanager 1B
Western Wood-Pewee 0, 0A, 1C, 1
Western Yellow-billed Cuckoo 2, 3
Western/Clark’s Grebe 7A, 7B
Whimbrel 4
Whiskered Auklet 3
Whiskered Screech-Owl 3A, 4
Whiskered Tern 2
Whistling Swan 9
White Ibis 6, 7A
White Tern 2
White Wagtail 1, 1C
White-breasted Nuthatch 1B, 1, 1C
White-cheeked Pintail 5
White-chinned Petrel 5
White-chinned Thrush 2
White-collared Seedeater 0, 0A
White-crowned Pigeon 4A, 4
White-crowned Sparrow 1B
White-eared Hummingbird X
White-eyed Thrush 2
White-eyed Vireo 0, 0A
White-faced Ibis 6
White-faced Storm-Petrel 3
White-headed Woodpecker 1A, 2, 1D
White-necked Crow 5, 6
White-rumped Sandpiper 1A, 1B
White-rumped Shama 2, 1A, 1D
White-rumped Swiftlet 0, 1, 1C
White-tailed Hawk 7A, 7B
White-tailed Kite 6, 5
White-tailed Tropicbird 4, 3A, 3B, 3
White-throated Ground-Dove 4, 3A
White-throated Sparrow 1B
White-throated Storm-Petrel 2, 3
White-throated Swift 2
White-tipped Dove 3A, 4, 3B
White-vented Myna 1A, 2, 1D
White-winged Crossbill 1B
White-winged Dove 4, 3A
White-winged Junco 1C, 1
White-winged Scoter 7A, 7
White-winged Tern 2
Whooper Swan 9
Whooping Crane 9, 9V
Willet 4
Williamson’s Sapsucker 1A
Willow Flycatcher 0, 0A
Wilson’s Phalarope 1A, 2, 1D
Wilson’s Plover 2, 1A, 1D
Wilson’s Snipe 3, 3B, 3A, 2
Wilson’s Storm-Petrel 1A, 1B
Wilson’s Warbler 0A, 0
Winter Wren 0A, 0
Wood Duck M: 5A, 6, 5
F: 5A, 5, 6
Wood Sandpiper 1A
Wood Stork 8
Wood Thrush 1A
Wood Warbler 0A
Worm-eating Warbler 1C, 0, 1
Worthen’s Sparrow 0
Wrentit 1C, 1
Xantus’s Murrelet 2, 2A
Yellow Bittern 4
Yellow Grosbeak 2, 1A, 1D
Yellow Palm Warbler 0, 0A
Yellow Rail 1A, 2, 1D
Yellow Warbler 0, 0A, 1C, 1
Yellow-bellied Elaenia 1B
Yellow-bellied Flycatcher 0, 0A
Yellow-bellied Sapsucker 1B, 1A
Yellow-bellied Seedeater 0, 0A, 1, 1C
Yellow-billed Cardinal 1A, 1B
Yellow-billed Cuckoo 2, 3
Yellow-billed Loon 9
Yellow-billed Magpie 3A
Yellow-breasted Chat 1B, 1A, 1D
Yellow-breasted Crake 3, 2
Yellow-crowned Bishop 0A
Yellow-crowned Night-Heron 7A
Yellow-eyed Junco 1C, 1
Yellow-faced Grassquit 0, 0A, 1C
Yellow-footed Gull 6
Yellow-fronted Canary 0, 1
Yellow-green Vireo 1, 1C
Yellow-headed Blackbird M: 2, 3, 1D
F: 1A, 1D, 2
Yellow-nosed Albatross 8
Yellow-rumped Warbler 0, 1C, 0A, 1
Yellow-shafted Flicker 3, 3B
Yellow-shouldered Blackbird 2
Yellow-shouldered Grassquit 1C, 1
Yellow-throated Vireo 1C, 1
Yellow-throated Warbler 0A, 0
Zebra Dove 3
Zenaida Dove 4
Zone-tailed Hawk 7A
Zonotrichia Sparrow Hybrid 1B