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Breeding Ecology And Behavior Of The Hawaiian Hawk, Curtis R. Griffin, Peter W. C. Paton, Thomas S. Baskett
Breeding Ecology And Behavior Of The Hawaiian Hawk, Curtis R. Griffin, Peter W. C. Paton, Thomas S. Baskett
Natural Resources Science Faculty Publications
We studied the ecology of the endangered Hawaiian Hawk (Buteo solitarius) on the island of Hawaii for three breeding seasons. Their breeding strategy is a prime example of a K-selected species characteristic of many birds in tropical environments: clutch size was one and brood-rearing was among the longest reported for any diurnal raptor. Twenty-eight nests were found in a variety of native and exotic habitats. Incubation lasted 38 days, nestlings fledged after 59-63 days, and parents cared for fledglings for an average of 30.2 weeks, which was 2.5 to 10 times longer than similar-size temperate zone raptors. Males …