Swainson's Hawk Nesting Ecology in North Dakota
Swainson's Hawks (Buteo swainsoni) were studied at 270 occupied nest sites in south-central North Dakota on a 1,259-km2 intensive study block and on a surrounding study area (16,519 km2) during three breeding seasons. On the intensive study block the number of occupied nests ranged from 46 in 1...
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Veröffentlicht in: | The Condor (Los Angeles, Calif.) Calif.), 1984-01, Vol.86 (1), p.12-18 |
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Sprache: | eng |
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