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Ecological Studies at the Woodworth Study Area

Terrestrial Bird Communities on the Woodworth Study Area

Table 1

Table 1. Total numbers and average density (per 100 ha) of indicated pairs of birds recorded in censuses at Woodworth Study Area, North Dakota. (Common names follow American Ornithologists' Union 1983.)
Species                           Total count                  Average density

Clay-colored sparrow                275.5                           28.32
Red-winged blackbird                199.2                           20.48
Bobolink                            158.2                           16.26
Blue-winged teal                    158.0                           16.24
Brown-headed cowbird                133.1                           13.68
Grasshopper sparrow                 115.1                           11.83
Western meadowlark                  110.7                           11.38
Common yellowthroat                  77.6                            7.98
Eastern kingbird                     76.1                            7.82
American coot                        62.2                            6.39
Gadwall                              44.5                            4.57
Willow flycatcher                    35.6                            3.66
Savannah sparrow                     34.0                            3.49
Mallard                              31.6                            3.25
Northern shoveler                    28.9                            2.97
Yellow warbler                       28.9                            2.97
Upland sandpiper                     25.2                            2.59
Sedge wren                           19.8                            2.04
Killdeer                             17.6                            1.81
American goldfinch                   13.2                            1.36
Common snipe                         12.1                            1.24
Northern pintail                     10.1                            1.04
Western kingbird                      9.0                            0.93
Gray catbird                          8.5                            0.87
Barn swallow                          8.3                            0.85
Marbled godwit                        7.9                            0.81
Willet                                7.9                            0.81
Sora                                  7.0                            0.72
Baird's sparrow                       6.7                            0.69
Common grackle                        6.1                            0.63
Song sparrow                          5.6                            0.58
Yellow-headed blackbird               5.4                            0.56
Black tern                            4.8                            0.49
Sharp-tailed grouse                   4.7                            0.48
Lesser scaup                          4.6                            0.47
Brown thrasher                        4.3                            0.44
Mourning dove                         3.9                            0.40
Redhead                               3.7                            0.38
Ruddy duck                            3.3                            0.34
Chestnut-collared longspur            2.8                            0.29
Common nighthawk                      2.6                            0.27
Cliff swallow                         2.3                            0.24
Green-winged teal                     2.3                            0.24
Horned lark                           2.3                            0.24
Northern harrier                      2.2                            0.23
Vesper sparrow                        2.1                            0.22
American bittern                      1.8                            0.18
Le Conte's sparrow                    1.6                            0.16
American wigeon                       1.2                            0.12
Wilson's phalarope                    1.2                            0.12
Bank swallow                          1.2                            0.12
Ring-necked pheasant                  1.1                            0.11
Pied-billed grebe                     1.1                            0.11
Black-billed cuckoo                   0.9                            0.09
Tree swallow                          0.9                            0.09
Gray partridge                        0.7                            0.07
Lark bunting                          0.7                            0.07
Swainson's hawk                       0.7                            0.07
Marsh wren                            0.5                            0.05
Orchard oriole                        0.5                            0.05
Common flicker                        0.4                            0.04
Canada goose                          0.3                            0.03
Ferruginous hawk                      0.3                            0.03
Northern oriole                       0.3                            0.03
Red-tailed hawk                       0.3                            0.03
Ring-billed gull                      0.3                            0.03
Sharp-tailed sparrow                  0.3                            0.03
Short-eared owl                       0.3                            0.03
Black-crowned night-heron             0.2                            0.02
Cedar waxwing                         0.2                            0.02
Dickcissel                            0.2                            0.02
Long-eared owl                        0.2                            0.02
American robin                        0.1                            0.01
Brewer's blackbird                    0.1                            0.01
Canvasback                            0.1                            0.01
Cooper's hawk                         0.1                            0.01
House wren                            0.1                            0.01
Least flycatcher                      0.1                            0.01
Loggerhead shrike                     0.1                            0.01
Ring-necked duck                      0.1                            0.01

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