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North American Birds: ABA Code 2 - Page 2

For its checklist, the American Birding Association assigns a code number for each bird that has been recorded in North America; generally speaking, the higher the code number, the rarer the bird. As defined by the ABA on its website, codes 1 and 2 "include regular breeding species and visitors. There is no firm designation between Code-1 and Code-2 species, except that logically Code-1 species are more widespread and are usually more numerous. Code-2 species have a restricted North American range, are more widespread, but occur in lower densities, or are quite secretive making their detection often difficult. We readily acknowledge that some Code-2 species are harder to find than some species that have higher codes."
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made by Birderguy
avg. score: 28 of 181 (15%)
required scores: 1, 2, 8, 20, 51 

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Page 2 of 5
Black Rail
Black Rail
41
Ridgway's Rail
Ridgway's Rail
42
Purple Swamphen
Purple Swamphen
43
Limpkin
Limpkin
44
Whooping Crane
Whooping Crane
45
Pacific Golden-Plover
Pacific Golden-Plover
46
Common Ringed Plover
Common Ringed Plover
47
Piping Plover
Piping Plover
48
Mountain Plover
Mountain Plover
49
Wood Sandpiper
Wood Sandpiper
50
Bristle-Thighed Curlew
Bristle-Thighed Curlew
51
Bar-Tailed Godwit
Bar-Tailed Godwit
52
Rock Sandpiper
Rock Sandpiper
53
South Polar Skua
South Polar Skua
54
Dovekie
Dovekie
55
Kittlitz's Murrelet
Kittlitz's Murrelet
56
Scripps's Murrelet
Scripps's Murrelet
57
Ancient Murrelet
Ancient Murrelet
58
Parakeet Auklet
Parakeet Auklet
59
Least Auklet
Least Auklet
60
Whiskered Auklet
Whiskered Auklet
61
Crested Auklet
Crested Auklet
62
Red-Legged Kittiwake
Red-Legged Kittiwake
63
Yellow-Footed Gull
Yellow-Footed Gull
64
Thayer's Gull
Thayer's Gull
65
Iceland Gull
Iceland Gull
66
Lesser Black-Backed Gull
Lesser Black-Backed Gull
67
Brown Noddy
Brown Noddy
68
Sooty Tern
Sooty Tern
69
Bridled Tern
Bridled Tern
70
Aleutian Tern
Aleutian Tern
71
Roseate Tern
Roseate Tern
72
White-Crowned Pigeon
White-Crowned Pigeon
73
Red-Billed Pigeon
Red-Billed Pigeon
74
Spotted Dove
Spotted Dove
75
White-Tipped Dove
White-Tipped Dove
76
Mangrove Cuckoo
Mangrove Cuckoo
77
Groove-Billed Ani
Groove-Billed Ani
78
Flammulated Owl
Flammulated Owl
79
Whiskered Screech-Owl
Whiskered Screech-Owl
80
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