Platte River Ecosystem Resources and Management, with Emphasis on the Big Bend Reach in Nebraska
Tables
Table 4. Long-term (1966-1987) trends in continental populations for breeding birds in the Platte River ecosystem. Significance levels are (*)= P<0.05, (**)= P<0.01.
| Species |
% Annual Decline |
Habitat |
Neotropical Migrant? |
| Northern pintail | 6.9 ** | Wetland | N |
| Field sparrow | 3.7** | Edge | N |
| Grasshopper sparrow | 3.2** | Grassland | N |
| Loggerhead shrike | 3.1** | Edge | N |
| Northern flicker | 2.8* | Woodland | N |
| Lark bunting | 2.8** | Grassland | N |
| Black-billed magpie | 2.7** | Grassland | N |
| Lark sparrow | 2.5** | Grassland | N |
| Rufous-sided towhee | 2.3** | Edge | N |
| Northern bobwhite | 1.9** | Edge | N |
| Eastern meadowlark | 1.9** | Grassland | N |
| Northern mockingbird | 1.8** | Edge | N |
| Orchard oriole | 1.8** | Woodland | Y |
| Wood thrush | 1.7** | Woodland | Y |
| Yellow-breasted chat | 1.5** | Edge | Y |
| Eastern wood-pewee | 1.4** | Woodland | Y |
| Blue jay | 1.4** | Woodland | N |
| Northern harrier | 1.1* | Grassland | N |
| Song sparrow | 1.1** | Edge | N |
| House sparrow | 1.1** | Urban | N |
| Red-headed woodpecker | 0.9* | Woodland | N |
| Brown thrasher | 0.9* | Edge | N |
| Western meadowlark | 0.8* | Grassland | N |
| Eurorpean starling | 0.7* | Urban | N |
| Northern cardinal | 0.6** | Woodland | N |
| Common grackle | 0.6* | Urban | N |
| American goldfinch | 0.6** | Edge | N |
| Indigo bunting | 0.5** | Edge | Y |
| Brown-headed cowbird | 0.5* | Grassland | N |
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