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Home Ranges and Habitat Use of Suburban Red-Shouldered Hawks
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| Abstract: | Radio telemetry was used to determine home range size and habitat use for breeding season and non-breedng season red-shouldered hawks nesting in a surburban area in southwestern Ohio. Home ranges averaged 96.0 ha for males (n=4) and 48.3 for females (n-2) during the breeding season, and 182.8 ha during the non-breeding season (n=3 males and 2 females). During the breeding season, the home ranges comprised 60.6% forest, 22.9% lawns/fields, 15.6% urban, and 0.4% water/wetland, on average. Each home range contained an average of 119 buildings (primarily residences), a density of 1.5 buildings/ha. Habitats where radio-tagged birds were observed perching were classified by researchers. During the breeding season, 51% of the observations of hawks were in upland forests/brush, 26% in lawns/fields, 1% in hosing/urban areas, nd 21% along the edges of streams or ponds (n=164 observations, distribution differs from distribution of habitat in home ranges, chi-square p <0.001). For the non-breeding season, home ranges were larger and comprised 58.1% forest, 22.2% lawns/fields, 18.8% urban, and 0.3% water/wetland, on average. Non-breeding home ranges contained an average of 311 buildings, a density of 1.6 buildings/ha. During the non-breeding season, 48% of the observations of hawks were in upland forests/brush, 41% in lawns/fields, 0% in housing/urban areas, and 11% along the edges of streams or ponds (n=126 observations, chi-square p<0.001). |
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| Citation: | Dykstra, C. R., J. L. Hays, F. B. Daniel, and M. M. Simon. Home Ranges and Habitat Use of Suburban Red-Shouldered Hawks. Presented at American Ornithologist Union, Ithaca, NY, August 1, 1999. |
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| Contact: |
Linda Ransick - (513) 569-7395 or ransick.linda@epa.gov
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| Division: |
Ecological Exposure Research Division |
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| Branch: |
Immediate Office |
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| Product Type: |
Abstrct/Oral |
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| Presented: |
08/01/1999 |
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