Promoting the enjoyment, study, and conservation of Wisconsin's birds.

The WSO Review List indicates rare species that have occurred in Wisconsin but require documentation for acceptance into the state records.  Birders should fill out the Rare Bird Documentation Form for these species, or any species not on the list that would represent a first state record.  Completed forms are assessed by the WSO Records Committee.

Updated February 2014

  • To search, hit Ctrl-F and type part of the common name (e.g., duck) and press enter.
Taxonomic Order
Common Name
1 Black-bellied Whistling-Duck
2 Fulvous Whistling-Duck
3 Brant
4 Eurasian Wigeon
5 Cinnamon Teal
6 King Eider
7 Common Eider
8 Barrow's Goldeneye (only away from the Great Lakes)
9 Smew
10 Masked Duck
11 Willow Ptarmigan
12 Pacific Loon
13 Wood Stork
14 Magnificent Frigatebird
15 Neotropic Cormorant
16 Anhinga
17 Brown Pelican
18 Little Blue Heron
19 Tricolored Heron
20 Yellow-crowned Night-Heron
21 White Ibis
22 Glossy Ibis
23 Roseate Spoonbill
24 Black Vulture
25 Swallow-tailed Kite
26 White-tailed Kite
27 Mississippi Kite
28 Harris's Hawk
29 Swainson's Hawk
30 Ferruginous Hawk
31 Gyrfalcon
32 Prairie Falcon
33 Yellow Rail (only away from Crex Meadows)
34 Black Rail
35 King Rail
36 Purple Gallinule
37 Snowy Plover
38 Wilson's Plover
39 Eskimo Curlew
40 Long-billed Curlew
41 Black Turnstone
42 Western Sandpiper
43 Purple Sandpiper (only away from Lake Michigan)
44 Curlew Sandpiper
45 Ruff
46 Red Phalarope
47 Black-legged Kittiwake
48 Ivory Gull
49 Sabine's Gull
50 Black-headed Gull
51 Little Gull
52 Ross's Gull
53 Laughing Gull (only away from Lake Michigan)
54 Black-tailed Gull
55 Mew Gull
56 California Gull
57 Slaty-backed Gull
58 Glaucous-winged Gull
59 Sooty Tern
60 Least Tern
61 White-winged Tern
62 Arctic Tern
63 Royal Tern
64 Pomarine Jaeger
65 Parasitic Jaeger (only away from Wisconsin Point)
66 Long-tailed Jaeger
67 Dovekie
68 Thick-billed Murre
69 Ancient Murrelet
70 Band-tailed Pigeon
71 White-winged Dove
72 Common Ground-Dove
73 Inca Dove
74 Groove-billed Ani
75 Barn Owl
76 Northern Hawk Owl
77 Burrowing Owl
78 Great Gray Owl
79 Boreal Owl
80 Chuck-will's-widow
81 Green Violet-ear
82 Green-breasted Mango
83 Broad-billed Hummingbird
84 Anna's Hummingbird
85 Rufous Hummingbird
86 Lewis's Woodpecker
87 American Three-toed Woodpecker
88 Western Wood-Pewee
89 Dusky Flycatcher
90 Say's Phoebe
91 Vermilion Flycatcher
92 Ash-throated Flycatcher
93 Western Kingbird
94 Scissor-tailed Flycatcher
95 Fork-tailed Flycatcher
96 Tropical/Couch's Kingbird
97 Gray Vireo
98 Clark's Nutcracker
99 Black-billed Magpie
100 Cave Swallow
101 Brown-headed Nuthatch
102 Rock Wren
103 Bewick's Wren
104 Mountain Bluebird
105 Sage Thrasher
106 Curve-billed Thrasher
107 Phainopepla
108 Chestnut-collared Longspur
109 Smith's Longspur
110 Black-throated Gray Warbler
111 Townsend's Warbler
112 Hermit Warbler
113 Swainson's Warbler
114 MacGillivray's Warbler
115 Green-tailed Towhee
116 Spotted Towhee
117 Rufous-crowned Sparrow
118 Black-throated Sparrow
119 Lark Bunting
120 Baird's Sparrow
121 Golden-crowned Sparrow
122 Western Tanager
123 Pyrrhuloxia
124 Black-headed Grosbeak
125 Blue Grosbeak
126 Lazuli Bunting
127 Painted Bunting
128 Great-tailed Grackle
129 Hooded Oriole
130 Streak-backed Oriole
131 Bullock's Oriole
132 Scott's Oriole
133 Brambling
134 Gray-crowned Rosy-Finch
135 Eurasian Tree Sparrow