The data below are the total number of individuals of each species that were seen during a survey of SERC property on one day during the winter. The dates of the surveys are listed in the first row. Surveys were conducted between 0700 and 1600 by 7-22 volunteers. The volunteers were divided into 4 groups; each group walked or drove through 1/4 of the 70 sq km survey area. Species 01/24/1982 01/09/1983 12/17/1989 12/23/1990 12/29/1991 01/10/1993 01/02/1994 01/08/1995 01/14/1996 01/11/1997 01/10/1998 01/10/1999 01/08/2000 Common Loon 0 0 0 0 1 3 1 0 0 0 0 0 1 Pied Billed Grebe 0 0 0 0 0 0 0 0 0 0 0 0 3 Horned Grebe 0 0 0 0 0 0 0 0 0 0 1 0 0 Great Blue Heron 0 3 8 4 1 4 8 16 0 4 11 4 26 Tundra Swan 10 52 68 131 2 85 20 167 6 38 70 70 44 Mute Swan 0 0 0 0 0 2 0 2 0 4 4 0 24 Canada Goose 571 689 1477 1019 209 556 1083 559 2184 313 1075 769 1532 Mallard 0 33 6 10 19 7 34 39 0 27 62 87 252 Black Duck 0 84 40 81 152 62 72 51 0 286 275 194 107 Wood Duck 0 0 0 2 0 0 0 0 0 0 0 0 0 American Shoveller 0 0 0 0 0 0 0 1 0 0 0 0 0 Redhead 0 0 2 0 0 0 0 0 0 0 0 0 0 Canvasback 0 80 1326 34 121 180 11 71 0 918 2287 2201 255 Greater Scaup 0 0 0 0 0 101 0 0 0 0 0 0 80 Lesser Scaup 0 0 0 2 42 1 3 0 0 0 2 12 0 Scaup sp. 0 0 206 0 0 276 0 1 0 115 0 0 4 Ring-necked Duck 0 0 0 0 3 0 0 0 0 0 0 1 0 Common Goldeneye 0 62 0 0 3 60 4 2 0 1 3 1 0 Bufflehead 0 80 49 42 75 451 201 131 0 69 88 13 76 Ruddy Duck 0 1 88 0 0 0 4 0 0 1248 3813 2500 2119 Pintail 0 0 0 0 0 0 0 0 0 0 0 5 0 Gadwall 0 0 0 0 0 0 0 0 0 0 0 6 0 Red-breasted Merganser 0 1 0 0 0 7 0 0 0 11 1 0 1 Hooded Merganser 0 0 0 0 0 0 6 0 0 10 3 14 5 Oldsquaw 0 0 0 0 12 4 0 0 0 0 0 0 0 American Coot 0 0 0 0 0 0 0 0 0 3 0 0 0 Turkey Vulture 4 44 25 39 16 16 17 19 8 16 25 7 31 Black Vulture 6 18 9 5 24 29 47 11 20 16 12 4 10 Bald Eagle 0 1 0 0 0 3 3 4 0 2 3 3 1 Sharp-shinned Hawk 0 3 1 0 0 1 2 0 0 2 2 0 1 Coopers Hawk 0 0 0 0 0 0 0 0 0 0 0 0 2 Red-tailed Hawk 0 1 5 5 1 4 6 2 5 8 8 7 14 Red-shouldered Hawk 2 5 7 4 4 9 4 1 4 2 4 1 2 Merlin 0 0 0 0 0 0 0 0 0 0 1 0 0 Marsh Harrier 0 0 0 0 0 1 0 0 1 0 1 0 1 American Kestrel 2 1 1 4 3 1 2 3 0 1 0 1 1 Virginia Rail 0 0 0 0 0 1 0 0 0 0 0 0 0 Bobwhite 0 0 6 0 0 0 0 1 0 0 0 0 0 Kildeer 0 15 4 9 0 0 1 20 0 11 70 6 33 American Woodcock 0 0 1 0 0 0 0 0 0 0 0 0 0 Herring Gull 1 9 80 10 3 13 13 89 0 26 78 89 107 Ring-billed Gull 55 22 2 23 6 194 31 32 29 159 43 35 132 Greater Black-backed Gull 0 3 1 1 1 5 4 0 0 3 3 3 0 Lesser Black-backed Gull 0 0 0 0 0 0 0 0 0 0 1 0 0 Laughing Gull 0 0 4 0 0 0 0 0 0 0 0 0 0 Mourning Dove 14 40 3 14 8 82 21 33 13 25 14 29 12 Rock Dove 0 0 0 0 0 0 0 0 0 0 20 0 1 Great Horned Owl 0 1 0 0 0 1 1 0 0 0 3 0 1 Barn Owl 0 0 0 0 1 1 0 0 0 0 0 0 0 Barred Owl 0 0 1 1 0 0 0 0 0 0 1 0 1 Screech Owl 0 0 0 0 0 0 0 0 0 0 1 0 6 Long-eared Owl 0 0 0 0 0 0 0 0 0 0 1 0 0 Belted Kingfisher 0 4 4 4 2 6 5 3 4 5 11 7 26 Common Flicker 13 51 39 40 25 52 41 8 11 22 54 14 20 Pileated Woodpecker 2 6 9 18 3 11 3 2 2 1 11 6 6 Yellow-bellied Sapsucker 2 6 10 11 5 9 7 4 7 13 12 5 13 Hairy Woodpecker 3 9 6 13 0 5 10 6 2 6 11 4 8 Downy Woodpecker 6 56 26 19 9 32 24 14 18 34 46 12 54 Red-bellied Woodpecker 11 71 47 23 14 52 33 18 34 34 74 29 34 Red-headed Woodpecker 1 0 1 0 3 0 0 2 0 2 2 0 0 Eastern Phoebe 0 0 1 0 1 1 0 0 0 1 0 1 0 Common Crow 23 68 53 18 45 54 89 44 78 61 152 60 125 Fish Crow 0 0 1 2 0 0 3 1 0 0 2 0 3 Blue Jay 13 98 53 25 14 44 51 21 33 46 67 41 60 Loggerhead Shrike 0 0 0 0 0 0 1 0 0 0 0 0 0 Carolina Chickadeee 39 171 56 87 36 101 58 40 40 64 152 61 125 Tufted Titmouse 17 63 43 43 18 41 38 34 33 49 97 50 72 White-br. Nuthatch 0 8 10 7 0 3 3 3 9 4 22 2 17 Red-br. Nuthatch 0 0 2 0 0 0 0 0 0 0 0 0 5 Brown Creeper 0 11 8 10 1 8 4 2 3 3 9 0 5 Carolina Wren 7 21 54 43 26 84 35 13 3 4 26 9 52 House Wren 0 0 0 0 0 0 0 0 0 0 0 0 1 Winter Wren 0 7 6 4 0 3 4 0 0 4 4 1 2 Marsh Wren 0 1 0 0 0 0 3 0 0 0 0 0 0 N. Mockingbird 5 23 20 8 15 20 15 8 24 10 22 21 13 Brown Thrasher 0 0 0 0 2 3 2 1 4 2 5 0 0 Gray Catbird 1 1 0 0 0 1 2 0 1 0 0 0 0 American Robin 2 24 38 27 0 100 9 121 4 24 51 132 208 Hermit Thrush 5 2 13 1 0 26 4 7 17 14 24 2 7 Eastern Bluebird 11 15 16 44 3 17 35 18 14 41 24 66 58 Golden-crowned Kinglet 0 12 22 17 9 7 20 0 0 27 6 4 9 Ruby-crowned Kinglet 0 5 0 1 1 3 0 2 0 0 1 1 2 Cedar Waxwing 12 53 18 76 15 17 22 339 20 18 155 19 23 European Starling 76 301 11 122 476 267 133 99 66 35 55 155 87 Pine Siskin 0 0 0 0 0 0 0 21 0 0 2 5 1 Yellow-rumped Warbler 11 54 42 58 15 35 9 40 23 89 58 85 73 Common Yellow-throat 0 0 0 0 0 0 0 0 0 0 0 0 1 Pine Warbler 0 0 0 0 0 0 0 1 0 0 0 0 0 House Sparrow 1 109 10 37 4 42 5 0 13 2 3 0 44 Red-winged Blackbird 162 112 1 110 901 68 40 11 56 220 29 1 99 Eastern Meadowlark 0 0 15 0 14 12 5 0 0 0 0 0 0 Common Grackle 332 0 0 329 900 2 2 204 70 8 72 2040 2 Rusty Blackbird 0 0 0 0 0 0 0 1 0 0 0 0 0 Brown-headed Cowbird 0 1 0 3 0 0 0 0 0 0 0 0 13 Northern Cardinal 20 139 137 78 50 100 69 23 73 30 93 67 90 Purple Finch 0 7 0 34 0 1 0 0 0 1 0 41 0 House Finch 0 0 0 7 1 17 13 20 2 10 20 6 17 American Goldfinch 7 29 4 9 17 125 18 0 7 46 43 38 110 Rufous-sided Towhee 6 8 9 6 7 19 6 2 4 10 16 5 8 Dark-eyed Junco 19 215 138 91 31 144 99 22 84 178 92 174 264 Field Sparrow 0 10 6 17 9 53 36 8 0 0 0 0 1 White-throated Sparrow 170 364 331 119 120 352 192 78 123 346 228 91 201 White-crowned Sparrow 0 0 1 0 0 0 1 0 0 0 0 85 0 Swamp Sparrow 0 26 1 5 5 20 25 2 2 6 35 3 21 Song Sparrow 12 55 54 44 28 44 64 23 11 58 58 47 67 Chipping Sparrow 0 0 0 1 0 0 0 0 0 1 0 0 0 Fox Sparrow 0 0 1 0 0 0 0 0 0 1 3 0 8 Savannah Sparrow 0 0 0 0 0 0 1 0 0 0 0 0 40 Tree Sparrow 0 0 0 0 0 0 0 0 1 0 0 0 13 Total Birds 1654 3464 4737 3051 3532 4161 2838 2521 982 4848 9833 9452 6993 Total Species 38 61 65 60 57 71 68 60 44 66 73 62 77 # Observers 7 10 12 8 8 17 10 12 14 14 22 9 22