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A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, R, S, T, U, V, W, X, Y, Z
| SPECIES | COMMON NAME | ALPHA CODE | BAND SIZE |
| 133.0 | American Black Duck | ABDU | 7A |
| 287.0 | American Black Oystercatcher | ABOY | 5 |
| 592.0 | Abert's Towhee | ABTO | 1A 2 |
| 465.0 | Acadian Flycatcher | ACFL | 0 0A |
| 172.1 | Aleutian Canada Goose | ACGO | 7B |
| 436.4 | Antillean Crested Hummingbird | ACHU | 0 1C |
| 407.0 | Acorn Woodpecker | ACWO | 2 3 |
| 850.4 | Adelie Penguin | ADPE | Flipper Tag |
| 664.1 | Adelaide's Warbler | ADWA | 0A |
| 851.4 | African Penguin | AFPE | Flipper Tag |
| 139.0 | American Green-winged Teal | AGWT | 4 4A |
| 914.1 | Arrow-headed Warbler | AHWA | 0A |
| 796.0 | Akekee | AKEK | 0 1 1B |
| 795.0 | Akepa | AKEP | 0 1 |
| 789.0 | Akiapolaau | AKIP | 1A |
| 466.1 | Alder Flycatcher | ALFL | 0 0A |
| 434.0 | Allen's Hummingbird | ALHU | S (t) |
| 503.1 | Altamira Oriole | ALOR | 3 |
| 073.0 | Aleutian Tern | ALTE | 2 1A |
| 225.0 | American Avocet | AMAV | 4 4A (d) |
| 190.0 | American Bittern | AMBI | F6 M7A |
| 221.0 | American Coot | AMCO | 6 |
| 488.0 | American Crow | AMCR | 5 |
| 701.0 | American Dipper | AMDI | 2 1A |
| 529.0 | American Goldfinch | AMGO | 0 0A 1C |
| 272.0 | American Golden-Plover | AMGP | 2 3 |
| 360.0 | American Kestrel | AMKE | 3B (g) |
| 286.0 | American Oystercatcher | AMOY | 5 |
| 697.0 | American Pipit | AMPI | 1 |
| 687.0 | American Redstart | AMRE | 0A 0 |
| 761.0 | American Robin | AMRO | 2 |
| 137.0 | American Wigeon | AMWI | 6 |
| 228.0 | American Woodcock | AMWO | 3 |
| 606.1 | Antillean Euphonia | ANEU | 0 1C |
| 118.0 | Anhinga | ANHI | 8 |
| 431.0 | Anna's Hummingbird | ANHU | M (t) |
| 784.0 | Anianiau | ANIA | 0 1C |
| 906.7 | Antillean Mango | ANMA | 0A |
| 021.0 | Ancient Murrelet | ANMU | 3B 3 |
| 420.1 | Antillean Nighthawk | ANNI | 2 1A |
| 853.2 | Antarctic Petrel | ANPE | 5 |
| 854.8 | Antarctic Tern | ANTE | 3 |
| 802.0 | Apapane | APAP | 1 |
| 359.0 | Aplomado Falcon | APFA | 5 (g) |
| 009.0 | Arctic Loon | ARLO | 7B |
| 071.0 | Arctic Tern | ARTE | 2 1A |
| 747.0 | Arctic Warbler | ARWA | 0A |
| 108.0 | Ashy Storm-Petrel | ASSP | 1B |
| 173.0 | Atlantic Brant | ATBR | 7B |
| 454.0 | Ash-throated Flycatcher | ATFL | 1B 1 |
| 013.0 | Atlantic Puffin | ATPU | 5 |
| 559.0 | American Tree Sparrow | ATSP | 0 1C |
| 503.0 | Audubon's Oriole | AUOR | 2 |
| 092.0 | Audubon's Shearwater | AUSH | 3A 3B |
| 656.0 | Audubon's Warbler | AUWA | 0 1 0A |
| 125.0 | American White Pelican | AWPE | 9 9C |
| 763.1 | Aztec Thrush | AZTH | 2 |
| 173.1 | Black x Atlantic Brant Intermediate | BABI | 7A 7B |
| 575.0 | Bachman's Sparrow | BACS | 1C |
| 352.0 | Bald Eagle | BAEA | 9 (i) |
| 152.0 | Barrow's Goldeneye | BAGO | 7A |
| 615.1 | Bahama Swallow | BAHS | 1C |
| 545.0 | Baird's Sparrow | BAIS | 1C |
| 703.1 | Bahama Mockingbird | BAMO | 2 1A |
| 635.0 | Bananaquit | BANA | 0 |
| 1 06.2 | Band-rumped Storm-Petrel | BANP | 2 |
| 616.0 | Bank Swallow | BANS | 0 |
| 507.0 | Baltimore Oriole | BAOR | 1A |
| 250.0 | Bar-tailed Godwit | BARG | M 4 F 4A |
| 613.0 | Barn Swallow | BARS | 0 1(l) |
| 241.0 | Baird's Sandpiper | BASA | 1B 1A |
| 139.1 | Baikal Teal | BATE | 4A |
| 437.1 | Bahama Woodstar | BAWO | L* (t) |
| 636.0 | Black-and-White Warbler | BAWW | 0 0A 1C |
| 914.5 | Bahama Yellowthroat | BAYE | 1 |
| 082.2 | Black-browed Albatross | BBAL | 8 |
| 388.0 | Black-billed Cuckoo | BBCU | 2 |
| 470.0 | Buff-breasted Flycatcher | BBFL | 0 0A |
| 918.4 | Blue-black Grassquit | BBGR | 0 |
| 441.0 | Broad-billed Hummingbird | BBLH | M (t) |
| 475.0 | Black-billed Magpie | BBMA | 3B 4 3 |
| 507.8 | Baltimore x Bullock's Oriole Hybrid | BBOH | 1A |
| 270.0 | Black-bellied Plover | BBPL | 3B |
| 852.8 | Broad-billed Prion | BBPR | 3 |
| 262.0 | Buff-breasted Sandpiper | BBSA | 1A |
| 660.0 | Bay-breasted Warbler | BBWA | 0 1 0A |
| 177.0 | Black-bellied Whistling-Duck | BBWD | 7A |
| 400.0 | Black-backed Woodpecker | BBWO | 2 |
| 735.0 | Black-capped Chickadee | BCCH | 0 1C |
| 453.0 | Brown-crested Flycatcher | BCFL | 1A |
| 753.1 | Black-capped Gnatcatcher | BCGN | 0A |
| 429.0 | Black-chinned Hummingbird | BCHU | S XS (t)(u) |
| 202.0 | Black-crowned Night-Heron | BCNH | 7A |
| 416.1 | Buff-collared Nightjar | BCNI | 2 |
| 504.2 | Black-cowled Oriole | BCOR | 1A 2 |
| 098.0 | Black-capped Petrel | BCPE | 3 |
| 526.0 | Brown-capped Rosy-Finch | BCRF | 1B |
| 565.0 | Black-chinned Sparrow | BCSP | 0 1C |
| 732.0 | Black-crested Titmouse | BCTI | 1B |
| 630.0 | Black-capped Vireo | BCVI | 0 1C |
| 368.0 | Barred Owl | BDOW | 7B (g) |
| 854.1 | Blue-eyed Cormorant | BECO | 8 |
| 171.1 | Bean Goose | BEGO | 7B 8 |
| 438.1 | Berylline Hummingbird | BEHU | L (t) |
| 390.0 | Belted Kingfisher | BEKI | 3B 3A |
| 180.1 | Bewick's Swan | BESW | 9 |
| 708.0 | Bendire's Thrasher | BETH | 2 |
| 633.0 | Bell's Vireo | BEVI | 0 |
| 719.0 | Bewick's Wren | BEWR | 1 |
| 081.0 | Black-footed Albatross | BFAL | 7B |
| 114.1 | Blue-footed Booby | BFBO | 7A 7B |
| 603.0 | Black-faced Grassquit | BFGR | 0A |
| 751.0 | Blue-gray Gnatcatcher | BGGN | 0A |
| 079.2 | Blue-gray Noddy | BGNO | 2 |
| 169.8 | Blue Greater Snow Goose | BGSG | 7B |
| 495.0 | Brown-headed Cowbird | BHCO | M 1A, F 1B |
| 596.0 | Black-headed Grosbeak | BHGR | 1A |
| 055.1 | Black-headed Gull | BHGU | 5 |
| 729.0 | Brown-headed Nuthatch | BHNU | 0 |
| 381.1 | Black-headed Parakeet | BHPA | 4 3A (j) |
| 629.0 | Blue-headed Vireo | BHVI | 1 |
| 622.3 | Bishop's O'o | BIOO | 3 |
| 757.1 | Bicknell's Thrush | BITH | 1B |
| 252.0 | Black-tailed Godwit | BLAG | 4 |
| 174.0 | Black Brant | BLBR | 7A |
| 597.1 | Blue Bunting | BLBU | 1B 1 |
| 662.0 | Blackburnian Warbler | BLBW | 0 0A |
| 874.0 | Black Drongo | BLDR | (m) |
| 169.1 | Lesser Snow Goose (Blue phase) | BLGO | 7B |
| 597.0 | Blue Grosbeak | BLGR | 1B |
| 027.0 | Black Guillemot | BLGU | 4 |
| 477.0 | Blue Jay | BLJA | 2 3 |
| 040.0 | Black-legged Kittiwake | BLKI | 4A |
| 079.1 | Black Noddy | BLNO | 2 3 |
| 852.7 | Blue Petrel | BLPE | 3 |
| 458.0 | Black Phoebe | BLPH | 1C |
| 661.0 | Blackpoll Warbler | BLPW | 0 1 0A |
| 216.0 | Black Rail | BLRA | 2 1A |
| 525.0 | Black Rosy-Finch | BLRF | 1B |
| 163.0 | Black Scoter | BLSC | 7A |
| 080.0 | Black Skimmer | BLSK | 4 |
| 107.0 | Black Storm-Petrel | BLSP | 1A |
| 422.0 | Black Swift | BLSW | 1A |
| 077.0 | Black Tern | BLTE | 2 1A |
| 284.0 | Black Turnstone | BLTU | 2 |
| 764.0 | Bluethroat | BLUE | 1 |
| 427.0 | Blue-throated Hummingbird | BLUH | XL (t) |
| 326.0 | Black Vulture | BLVU | 8V (f) |
| 365.0 | Barn Owl | BNOW | 6 7A (g) |
| 226.0 | Black-necked Stilt | BNST | 4 3A (d) |
| 073.1 | Black-naped Tern | BNTE | 2 |
| 494.0 | Bobolink | BOBO | M 1A, F 1B |
| 740.0 | Boreal Chickadee | BOCH | 0 0A |
| 060.0 | Bonaparte's Gull | BOGU | 3 3B |
| 371.0 | Boreal Owl | BOOW | 5 6 (g) |
| 099.1 | Bonin Petrel | BOPE | 3 2 |
| 576.0 | Botteri's Sparrow | BOSP | 1C |
| 618.0 | Bohemian Waxwing | BOWA | 1A |
| 122.0 | Brandt's Cormorant | BRAC | 8 |
| 514.1 | Brambling | BRAM | 1B 1 |
| 510.0 | Brewer's Blackbird | BRBL | 2 |
| 115.0 | Brown Booby | BRBO | 7B |
| 726.0 | Brown Creeper | BRCR | 0A 0 |
| 483.2 | Brown Jay | BRJA | 4A 4 3 |
| 810.1 | Bronze Manakin | BRMA | 0A |
| 175.0 | Barnacle Goose | BRNG | 7B |
| 079.0 | Brown Noddy | BRNO | 3 |
| 496.0 | Bronzed Cowbird | BROC | M 2, F 1A |
| 126.0 | Brown Pelican | BRPE | 8A 9 8 |
| 322.2 | Bridled Quail-Dove | BRQD | 3A 4 |
| 621.1 | Brown Shrike | BRSH | 2 1A |
| 855.4 | Brown Skua | BRSK | 7A 7B |
| 562.0 | Brewer's Sparrow | BRSP | 0 1 0A |
| 076.0 | Bridled Tern | BRTE | 2 3 (x) |
| 705.0 | Brown Thrasher | BRTH | 2 3 |
| 734.0 | Bridled Titmouse | BRTI | 1 |
| 641.2 | Brewster's Warbler | BRWA | 0A 0 |
| 870.0 | Bridled White-eye | BRWE | 0 |
| 808.0 | Black-rumped Waxbill | BRWX | 0 1C |
| 543.0 | Belding's Savannah Sparrow | BSSP | 1C |
| 654.0 | Black-throated Blue Warbler | BTBW | 0 0A |
| 268.0 | Bristle-thighed Curlew | BTCU | 4A |
| 752.0 | Black-tailed Gnatcatcher | BTGN | 0A |
| 513.0 | Boat-tailed Grackle | BTGR | M 4, F 3 |
| 054.2 | Band-tailed Gull | BTGU | 5 |
| 432.0 | Broad-tailed Hummingbird | BTLH | M (t) |
| 667.0 | Black-throated Green Warbler | BTNW | 0A 0 |
| 312.0 | Band-tailed Pigeon | BTPI | 5 |
| 573.0 | Black-throated Sparrow | BTSP | 1C |
| 665.0 | Black-throated Gray Warbler | BTYW | 0A 0 |
| 852.1 | Buller's Albatross | BUAL | 8 |
| 153.0 | Bufflehead | BUFF | 5 |
| 439.0 | Buff-bellied Hummingbird | BUFH | M (t) |
| 435.0 | Bumblebee Hummingbird | BUHU | XS* (t) |
| 096.2 | Buller's Shearwater | BULS | 4 |
| 508.0 | Bullock's Oriole | BUOR | 1A |
| 378.0 | Burrowing Owl | BUOW | 4 (g) |
| 101.0 | Bulwer's Petrel | BUPE | 2 3 |
| 743.0 | Bushtit | BUSH | 0A |
| 504.1 | Black-vented Oriole | BVOR | 2 |
| 093.0 | Black-vented Shearwater | BVSH | 4 |
| 695.1 | Black-backed Wagtail | BWAG | 1 |
| 343.0 | Broad-winged Hawk | BWHA | 5 6 (g) (h) |
| 140.0 | Blue-winged Teal | BWTE | M 5 4A, F 4A 5 |
| 623.0 | Black-whiskered Vireo | BWVI | 1C |
| 641.0 | Blue-winged Warbler | BWWA | 0A 0 |
| 016.0 | Cassin's Auklet | CAAU | 3B-3A |
| 172.2 | Cackling Goose | CACG | 7A |
| 736.0 | Carolina Chickadee | CACH | 0 0A 1C |
| 713.0 | Cactus Wren | CACW | 1B 1A |
| 200.1 | Cattle Egret | CAEG | 6 |
| 472.1 | Caribbean Elaenia | CAEL | 0 1C |
| 518.0 | Cassin's Finch | CAFI | 1B 1 |
| 753.0 | California Gnatcatcher | CAGN | 0A |
| 172.0 | Canada Goose | CAGO | 8 |
| 053.0 | California Gull | CAGU | 5 |
| 866.0 | Cardinal Honeyeater | CAHO | 1 |
| 436.0 | Calliope Hummingbird | CAHU | XS (t) |
| 448.0 | Cassin's Kingbird | CAKI | 1A |
| 324.0 | California Condor | CALC | 8V (f) |
| 591.1 | California Towhee | CALT | 2 1A |
| 591.0 | Canyon Towhee | CANT | 2 1A |
| 147.0 | Canvasback | CANV | 7A |
| 717.0 | Canyon Wren | CANW | 1 |
| 381.4 | Caribbean Parakeet | CAPA | 3 2 (j) |
| 102.0 | Cape Petrel | CAPE | 4 |
| 221.1 | Caribbean Coot | CARC | 6 5 |
| 718.0 | Carolina Wren | CARW | 1B |
| 578.0 | Cassin's Sparrow | CASP | 1C |
| 612.1 | Cave Swallow | CASW | 1 (l) |
| 064.0 | Caspian Tern | CATE | 5 4A |
| 710.0 | California Thrasher | CATH | 3 |
| 629.2 | Cassin's Vireo | CAVI | 1 |
| 686.0 | Canada Warbler | CAWA | 0 0A |
| 067.1 | Cayenne Tern | CAYT | 3B |
| 741.0 | Chestnut-backed Chickadee | CBCH | 0 0A |
| 345.0 | Common Black Hawk | CBHA | 7A 6 (g) |
| 707.0 | Curve-billed Thrasher | CBTH | 3 |
| 538.0 | Chestnut-collared Longspur | CCLO | 1 |
| 762.1 | Clay-colored Robin | CCRO | 2 |
| 561.0 | Clay-colored Sparrow | CCSP | 0 |
| 619.0 | Cedar Waxwing | CEDW | 1B |
| 658.0 | Cerulean Warbler | CERW | 0A 0 |
| 382.5 | Cherry-headed Conure | CHCO | 4A (j) |
| 812.0 | Chestnut Manakin | CHMA | 0 1C |
| 850.5 | Chinstrap Penguin | CHPE | Flipper Tag |
| 487.0 | Chihuahuan Raven | CHRA | 5 |
| 096.3 | Christmas Shearwater | CHSH | 4A |
| 560.0 | Chipping Sparrow | CHSP | 0 oA |
| 423.0 | Chimney Swift | CHSW | 1B |
| 141.0 | Cinnamon Teal | CITE | 5 4A |
| 001.1 | Clark's Grebe | CLGR | 7A 7B |
| 491.0 | Clark's Nutcracker | CLNU | 3B |
| 211.0 | Clapper Rail | CLRA | 5 |
| 612.0 | Cliff Swallow | CLSW | 1 (l) |
| 650.0 | Cape May Warbler | CMWA | 0 0A 1C |
| 533.1 | Common Canary | COCA | 1 |
| 514.3 | Common Chaffinch | COCH | 1B 1 |
| 159.0 | Common Eider | COEI | 7A |
| 464.0 | Cordilleran Flycatcher | COFL | 0 0A |
| 320.0 | Common Ground-Dove | COGD | 2 |
| 151.0 | Common Goldeneye | COGO | 6 |
| 511.0 | Common Grackle | COGR | 3 3B |
| 333.0 | Cooper's Hawk | COHA | M 4 F 5 6 (g) |
| 430.0 | Costa's Hummingbird | COHU | XS (t) |
| 446.1 | Couch's Kingbird | COKI | 1B 1A |
| 863.0 | Collared Kingfisher | COLK | 2 |
| 007.0 | Common Loon | COLO | 8 9 (n) |
| 647.1 | Colima Warbler | COLW | 1C |
| 129.0 | Common Merganser | COME | 7A |
| 219.0 | Common Moorhen | COMO | 5 6 |
| 030.0 | Common Murre | COMU | 6M |
| 808.1 | Common Waxbill | COMW | 0A 0 |
| 493.2 | Common Myna | COMY | 3 |
| 420.0 | Common Nighthawk | CONI | 2 1A |
| 678.0 | Connecticut Warbler | CONW | 1 |
| 098.3 | Cook's Petrel | COPE | 3 |
| 418.0 | Common Poorwill | COPO | 1A 2 |
| 486.0 | Common Raven | CORA | 6 7A |
| 528.0 | Common Redpoll | CORE | 0 0A |
| 516.1 | Common Rosefinch | CORO | 1B 1 |
| 263.1 | Common Sandpiper | COSA | 1B 1 |
| 088.0 | Cory's Shearwater | COSH | 4 |
| 230.0 | Common Snipe | COSN | 3 |
| 070.0 | Common Tern | COTE | 2 |
| 681.0 | Common Yellowthroat | COYE | 0 1 0A |
| 146.1 | Common Pochard | CPOC | 6 7A |
| 018.0 | Crested Auklet | CRAU | 4 |
| 362.0 | Crested Caracara | CRCA | M 7A, F 7B (g) |
| 801.0 | Crested Honeycreeper | CRHO | 1A |
| 026.0 | Craveri's Murrelet | CRMU | 2 |
| 493.1 | Crested Myna | CRMY | 3 2 |
| 275.0 | Common Ringed Plover | CRPL | 1A 1B |
| 065.2 | Crested Tern | CRTE | 3 3A |
| 712.0 | Crissal Thrasher | CRTH | 2 |
| 551.1 | Cape Sable Seaside Sparrow | CSSS | 1B |
| 659.0 | Chestnut-sided Warbler | CSWA | 0A 0 |
| 603.1 | Cuban Grassquit | CUGR | 0 |
| 462.1 | Cuban Pewee | CUPE | 0 1C |
| 244.0 | Curlew Sandpiper | CUSA | 1A |
| 416.0 | Chuck-will's-widow | CWWI | 3 |
| 120.0 | Double-crested Cormorant | DCCO | 8 7B (o) |
| 455.0 | Dusky-capped Flycatcher | DCFL | 1B 1 |
| 604.0 | Dickcissel | DICK | 1B |
| 852.9 | Dove Prion | DOPR | 3 |
| 034.0 | Dovekie | DOVE | 3 |
| 394.0 | Downy Woodpecker | DOWO | 1B |
| 098.5 | Dark-rumped Petrel | DRPE | 4 3A |
| 469.0 | Dusky Flycatcher | DUFL | 0 0A |
| 243.0 | Dunlin | DUNL | 1A 1B |
| 761.4 | Dusky Thrush | DUTH | 2 |
| 747.4 | Dusky Warbler | DUWA | 0A |
| 766.0 | Eastern Bluebird | EABL | 1B 1 |
| 004.0 | Eared Grebe | EAGR | 5 |
| 444.0 | Eastern Kingbird | EAKI | 1B |
| 501.0 | Eastern Meadowlark | EAME | M 3, F 2 3 |
| 456.0 | Eastern Phoebe | EAPH | 0 1 |
| 373.0 | Eastern Screech-Owl | EASO | 5 4A (g)(s) |
| 587.0 | Eastern Towhee | EATO | M 2 1A, F 1A 2 |
| 389.1 | Eared Trogon | EATR | 2 |
| 461.0 | Eastern Wood-Pewee | EAWP | 0 0A |
| 761.3 | Eye Browed Thrush | EBTH | 2 |
| 315.9 | Eurasian Collared-Dove | ECDO | 4A (e) |
| 138.0 | Eurasian Green-winged Teal | EGWT | 4 4A |
| 770.0 | Elepaio | ELEP | 1A |
| 381.0 | Elf Owl | ELOW | 2 |
| 066.0 | Elegant Tern | ELTE | 3 |
| 389.0 | Elegant Trogon | ELTR | 1A 2 |
| 176.0 | Emperor Goose | EMGO | 7B |
| 850.2 | Emperor Penguin | EMPE | Flipper Tag |
| 688.3 | Eurasian Tree Sparrow | ETSP | 1 1B |
| 731.0 | Eastern Tufted Titmouse | ETTI | 1B |
| 516.0 | Eurasian Bullfinch | EUBU | 1B 1A |
| 269.1 | Eurasian Dotterel | EUDO | 1B 1A |
| 526.1 | European Goldfinch | EUGO | 0 |
| 271.0 | Eurasian Golden-Plover | EUGP | 2 3 |
| 359.1 | Eurasian Kestrel | EUKE | 3B 4 (g) |
| 493.0 | European Starling | EUST | 2 3 |
| 136.0 | Eurasian Wigeon | EUWI | 6 |
| 227.0 | European Woodcock | EUWO | 3 |
| 514.0 | Evening Grosbeak | EVGR | 1A 2 |
| 554.1 | Eastern White-crowned Sparrow | EWCS | 1B |
| 658.1 | Elfin Woods Warbler | EWWA | 0A |
| 137.1 | Falcated Duck | FADU | 4A |
| 851.2 | Fairy Penguin | FAPE | Flipper Tag |
| 853.1 | Fairy Prion | FAPR | 3 |
| 607.1 | Flame-colored Tanager | FCTA | 1A |
| 348.0 | Ferruginous Hawk | FEHA | 7D 8 7B (g) |
| 380.0 | Ferruginous Pygmy-Owl | FEPO | 3B |
| 095.1 | Flesh-footed Shearwater | FFSH | 4 |
| 546.4 | Florida Grasshopper Sparrow | FGSP | 1 |
| 490.0 | Fish Crow | FICR | 4A |
| 761.2 | Fieldfare | FIEL | 2 |
| 563.0 | Field Sparrow | FISP | 0 1 0A |
| 412.3 | Flicker Intergrade | FLIN | 3 |
| 374.0 | Flammulated Owl | FLOW | 3 3B 2 |
| 479.0 | Florida Scrub-Jay | FLSJ | 2 3 |
| 585.0 | Fox Sparrow | FOSP | 1A 1B |
| 069.0 | Forster's Tern | FOTE | 3 |
| 059.0 | Franklin's Gull | FRGU | 4 |
| 574.2 | Five-striped Sparrow | FSSP | 1B |
| 442.0 | Fork-tailed Flycatcher | FTFL | 1B 1 |
| 105.0 | Fork-tailed Storm-Petrel | FTSP | 1B |
| 688.1 | Fan-tailed Warbler | FTWA | 1B 1 |
| 178.0 | Fulvous Whistling-Duck | FUWD | 7A 6 |
| 917.8 | Greater Antillean Bullfinch | GABU | 1B |
| 135.0 | Gadwall | GADW | 6 |
| 910.1 | Greater Antillean Elaenia | GAEL | 0A |
| 513.1 | Greater Antillean Grackle | GAGR | 3 |
| 851.7 | Galapagos Penguin | GALP | Flipper Tag |
| 139.2 | Garganey | GARG | 4A |
| 384.0 | Groove-billed Ani | GBAN | 3B |
| 047.0 | Great Black-backed Gull | GBBG | 7B 7A |
| 194.0 | Great Blue Heron | GBHE | 7B 8 |
| 611.2 | Gray-breasted Martin | GBMA | 1A |
| 853.8 | Gray-backed Storm-Petrel | GBSP | 1A |
| 063.0 | Gull-billed Tern | GBTE | 3B |
| 757.9 | Gray-cheeked/Bicknell's Thrush | GCBT | 1B |
| 452.0 | Great Crested Flycatcher | GCFL | 1A 1B |
| 748.0 | Golden-crowned Kinglet | GCKI | 0A |
| 524.0 | Gray-crowned Rosy-Finch | GCRF | 1B |
| 557.0 | Golden-crowned Sparrow | GCSP | 1B 1A |
| 757.0 | Gray-cheeked Thrush | GCTH | 1B |
| 666.0 | Golden-cheeked Warbler | GCWA | 0A |
| 682.1 | Gray-crowned Yellowthroat | GCYE | 1 |
| 850.3 | Gentoo Penguin | GEPE | Flipper Tag |
| 410.0 | Golden-fronted Woodpecker | GFWO | 2 |
| 370.0 | Great Gray Owl | GGOW | 8 (g) |
| 852.2 | Gray-headed Albatross | GHAL | 8 |
| 569.0 | Gray-headed Junco | GHJU | 0 1C |
| 375.0 | Great Horned Owl | GHOW | 8 9 (g) |
| 414.0 | Gilded Flicker | GIFL | 3 2 |
| 411.0 | Gila Woodpecker | GIWO | 2 3 |
| 391.0 | Green Kingfisher | GKIN | 2 1A (k) |
| 449.0 | Great Kiskadee | GKIS | 2 |
| 042.0 | Glaucous Gull | GLGU | 7A 6 (r) |
| 186.0 | Glossy Ibis | GLIB | 6 |
| 742.3 | Greater Necklaced Laughing-Thrush | GNLT | 2 |
| 804.2 | Golden Bishop | GOBI | 0A |
| 349.0 | Golden Eagle | GOEA | 9 (i) |
| 692.0 | Golden-crowned Warbler | GOLW | 1 0 |
| 871.0 | Golden White-eye | GOWE | 0 |
| 484.0 | Gray Jay | GRAJ | 3 2 |
| 445.0 | Gray Kingbird | GRAK | 1A |
| 076.1 | Gray-backed Tern | GRAT | 2 |
| 696.1 | Gray Wagtail | GRAW | 1 |
| 535.3 | Gray Bunting | GRBU | 1B |
| 704.0 | Gray Catbird | GRCA | 1A |
| 119.0 | Great Cormorant | GRCO | 8 |
| 787.0 | Greater Akialoa | GREA | 1C |
| 182.0 | Greater Flamingo | GREF | 8 |
| 196.0 | Great Egret | GREG | 7A 7B |
| 483.0 | Green Jay | GREJ | 2 |
| 471.1 | Greenish Elaenia | GREL | 0 0A |
| 436.6 | Green-breasted Mango | GREM | L* (t) |
| 469.1 | Gray Flycatcher | GRFL | 0 0A |
| 128.1 | Great Frigatebird | GRFR | 7B 7A (b) |
| 346.0 | Gray Hawk | GRHA | 6 7A (g) |
| 201.0 | Green Heron | GRHE | 5 |
| 436.2 | Green Mango | GRMA | 0 1C |
| 460.0 | Greater Pewee | GRPE | 1B |
| 385.0 | Greater Roadrunner | GRRO | 5 |
| 148.0 | Greater Scaup | GRSC | 6 5 |
| 089.0 | Greater Shearwater | GRSH | 6 |
| 035.0 | Great Skua | GRSK | 7A 7B |
| 546.0 | Grasshopper Sparrow | GRSP | 1 |
| 427.1 | Green Violet-ear | GRVE | M* (t) |
| 634.0 | Gray Vireo | GRVI | 1 |
| 664.0 | Grace's Warbler | GRWA | 0A |
| 254.0 | Greater Yellowlegs | GRYE | 3 3B |
| 773.0 | Gray-spotted Flycatcher | GSFL | 0 1C |
| 169.9 | Greater Snow Goose | GSGO | 7B |
| 436.3 | Green-throated Carib | GTCA | 0 1C |
| 512.0 | Great-tailed Grackle | GTGR | M 4, F 3 |
| 590.0 | Green-tailed Towhee | GTTO | 1B 1A |
| 120.1 | Guanay Cormorant | GUCO | 8 |
| 858.0 | Guam Swiftlet | GUSW | 0A X |
| 555.0 | Gambel's White-crowned Sparrow | GWCS | 1B |
| 171.0 | Greater White-fronted Goose | GWFG | 7B 8 |
| 044.0 | Glaucous-winged Gull | GWGU | 7A |
| 192.0 | Great White Heron | GWHE | 8 |
| 642.0 | Golden-winged Warbler | GWWA | 0A 0 |
| 354.0 | Gyrfalcon | GYRF | 7B |
| 782.0 | Hawaii Amakihi | HAAM | 1 |
| 220.1 | Hawaiian Coot | HACO | 6 5 |
| 468.0 | Hammond's Flycatcher | HAFL | 0 0A |
| 175.1 | Hawaiian Goose | HAGO | 7B 8 |
| 219.1 | Hawaiian Moorhen | HAMO | 5 6 |
| 155.0 | Harlequin Duck | HARD | 5 |
| 553.0 | Harris's Sparrow | HASP | 1A |
| 226.1 | Hawaiian Stilt | HAST | 4 (d) |
| 132.1 | Hawaiian Duck | HAWD | 6 |
| 514.2 | Hawfinch | HAWF | 1A 2 |
| 393.0 | Hairy Woodpecker | HAWO | 1A 2 |
| 327.1 | Hook-billed Kite | HBKI | 6 7A (g) |
| 791.0 | Hawaii Creeper | HCRE | 0 1C |
| 489.2 | Hawaiian Crow | HCRO | 6 |
| 057.0 | Heermann's Gull | HEEG | 4A |
| 051.0 | Herring Gull | HERG | 6 |
| 547.0 | Henslow's Sparrow | HESP | 0 1C |
| 609.0 | Hepatic Tanager | HETA | 1A |
| 759.0 | Hermit Thrush | HETH | 1B 1 |
| 669.0 | Hermit Warbler | HEWA | 0A |
| 462.4 | Hispaniolan Pewee | HIPE | 0 1C |
| 519.0 | House Finch | HOFI | 1B 1 |
| 003.0 | Horned Grebe | HOGR | 6 5 |
| 474.0 | Horned Lark | HOLA | 1B |
| 131.0 | Hooded Merganser | HOME | 5 6 |
| 505.0 | Hooded Oriole | HOOR | 1A 1B |
| 014.0 | Horned Puffin | HOPU | 5 |
| 527.0 | Hoary Redpoll | HORE | 0 0A |
| 688.2 | House Sparrow | HOSP | 1B |
| 684.0 | Hooded Warbler | HOWA | 0 1C |
| 721.0 | House Wren | HOWR | 0 0A |
| 381.2 | Hispaniolan Parakeet | HPKT | 3A 3B (j) |
| 382.7 | Hispaniolan Parrot | HPRT | 4A 4 (j) |
| 338.0 | Harlan's Hawk | HRLH | 7B 7A (g) |
| 335.0 | Harris's Hawk | HRSH | 7A 7B (g) |
| 251.0 | Hudsonian Godwit | HUGO | 3A |
| 851.5 | Humboldt Penguin | HUPE | Flipper Tag |
| 632.0 | Hutton's Vireo | HUVI | 0 |
| 344.1 | Hawaiian Hawk | HWAH | 7A (g) |
| 081.6 | Hybrid Albatross | HYAL | 7B 8 (v) |
| 767.6 | Hybrid Bluebird | HYBL | 1B 1A 1 |
| 735.6 | Hybrid Chickadee | HYCH | 0 1 0A (v) |
| 072.6 | Hybrid Common x Roseate Tern | HCRT | 2 |
| 044.6 | Hybrid Gull | HYGU | 6 (v) |
| 998.6 | Hybrid Nonpasserine | HYNO | various (v) |
| 999.6 | Hybrid Passerine | HYPA | various (v) |
| 402.3 | Hybrid Sapsucker | HYSA | 1A 1B 2 (v) |
| 855.2 | Hybrid Skua | HYSK | 7A 7B (v) |
| 070.6 | Hybrid Tern (not COTE x ROST, see 072.5) | HYTE | (varies with parentage) (v) |
| 590.6 | Hybrid Towhee | HYTO | 1A 1B (q) (v) |
| 043.0 | Iceland Gull | ICGU | 6 |
| 493.4 | Indian Hill Myna | IHMY | 2 |
| 798.0 | Iiwi | IIWI | 1B |
| 598.6 | Indigo x Lazuli Bunting Hybrid | ILBH | 1 |