Estimating wintering Bald Eagle densities in the Mississippi Alluvial Valley
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Abstract
Surveys on the winter distribution of Bald Eagles have been concentrated in the northern USA (Hastings 1988, Mattson 1988), where Bald Eagles are most common. Few density estimates for wintering Bald Eagles exist. In the past, different survey techniques with little standardization have been used. Statistical analyses and error measurements of existing winter survey data usually are not possible. The National Wildlife Federation's "midwinter Bald Eagle survey," the largest operational winter survey, is
not systematic. Observers concentrate on areas where large numbers of Bald Eagles winter. We collected Bald Eagle density and distribution data in the Mississippi alluvial valley (MAV) while conducting four regional aerial surveys for Mallards (Anas platyrhynchos) during the winters of 1988-89 and 1989-90. Our objectives were to determine if the relatively large sample size and experimental design used in our Mallard surveys would provide accurate population estimates and additional distribution data not provided by current Bald Eagle surveys
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Estimating wintering Bald Eagle densities in the Mississippi Alluvial Valley |
| Series title | Journal of Raptor Research |
| Year Published | 1991 |
| Language | English |
| Publisher | Raptor Research Foundation Inc. |
| Contributing office(s) | National Wetlands Research Center, Wetland and Aquatic Research Center |
| Description | 3 p. |
| First page | 40 |
| Last page | 42 |
| Country | United States |
| State | Arkansas, Illinois, Kentucky, Louisiana, Mississippi, Missouri. Tennessee |
| Other Geospatial | Mississippi Alluvial Valley |
| Google Analytic Metrics | Metrics page |