North Dakota Bird Life:
Tracking Changes Over a Quarter Century
How Many Birds in North Dakota?
We estimated there were about 25.5 million breeding pairs in North Dakota in 1967, 24.1 million pairs in 1992, and 27.4 million pairs in 1993. Multiplying these estimates by two gives a rough estimate of nearly 50 million individual breeding birds in North Dakota during the breeding season, before young are produced. This estimate is conservative because some breeding birds are polygynous, with males having two or more mates.
|
|
|
|
|
| Mallard | 457,000 | 249,000 | 439,000 |
| Northern Pintail | 371,000 | 50,000 | 127,000 |
| Blue-winged Teal | 612,000 | 216,000 | 312,000 |
| Northern Harrier | 33,000 | 46,000 | 75,000 |
| Sharp-tailed Grouse | 39,000 | 102,000 | 72,000 |
| Sora | 68,000 | 90,000 | 167,000 |
| American Coot | 761,000 | 169,000 | 271,000 |
| Killdeer | 227,000 | 248,000 | 312,000 |
| Upland Sandpiper | 139,000 | 236,000 | 198,000 |
| Wilson's Phalarope | 157,000 | 66,000 | 79,000 |
| Mourning Dove | 628,000 | 742,000 | 733,000 |
| Western Kingbird | 221,000 | 427,000 | 390,000 |
| Horned Lark | 2,772,000 | 2,412,000 | 3,672,000 |
| Cliff Swallow | 308,000 | 743,000 | 477,000 |
| Barn Swallow | 206,000 | 408,000 | 420,000 |
| Blue Jay | 29,000 | 58,000 | 66,000 |
| American Crow | 60,000 | 28,000 | 58,000 |
| Black-capped Chickadee | 6,000 | 59,000 | 66,000 |
| House Wren | 111,000 | 473,000 | 449,000 |
| Marsh Wren | 112,000 | 250,000 | 336,000 |
| American Robin | 144,000 | 254,000 | 267,000 |
| Brown Thrasher | 93,000 | 187,000 | 229,000 |
| Lark Bunting | 1,368,000 | 1,541,000 | 686,000 |
| Savannah Sparrow | 1,120,000 | 295,000 | 596,000 |
| Song Sparrow | 116,000 | 216,000 | 274,000 |
| Chestnut-collared Longspur | 2,544,000 | 1,351,000 | 1,707,000 |
| Bobolink | 464,000 | 405,000 | 371,000 |
| Red-winged Blackbird | 2,038,000 | 1,306,000 | 1,536,000 |
| Western Meadowlark | 2,034,000 | 1,080,000 | 1,441,000 |
| Common Grackle | 302,000 | 658,000 | 651,000 |
| Brown-headed Cowbird | 1,005,000 | 1,425,000 | 1,335,000 |
| Baltimore Oriole | 44,000 | 105,000 | 86,000 |
| American Goldfinch | 227,000 | 316,000 | 282,000 |
| House Sparrow | 214,000 | 397,000 | 380,000 |
Previous Section -- The Field Work Begins
Return to Contents
Next Section -- Population Changes Varied by Habitat
