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Abundance and habitat selection of two American kestrel subspecies in north-central Florida

Abundance and habitat selection of two American kestrel subspecies in north-central Florida

Auk 103.3: 557-563

The authors censused American Kestrels (Falco sparverius ) in the three vegetation communities representative of north-central Florida (pine flatwoods, sandhills, and agriculture/mixed hardwoods) along 24 16-km roadside transects. The winter kestrel population included resident F. s. paulus and migrant F. s. sparverius . Eighty-four percent of the 1,433 kestrels were sighted in winter, reflecting a significant influx of migrant F. s. sparverius and were primarily females (65%). Significant sexual differences in winter habitat use were attributed to the large numbers of migrants. Males preferred closed habitats and smaller-sized open areas, and females preferred open habitats and larger open areas. Wintering kestrels were most abundant in the agriculture/mixed-hardwoods community (51%) and least abundant in the pine-flatwoods community (13%).

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Accession: 037213805

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DOI: 10.2307/4087128

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