Red-Tailed Hawk Nesting Success, 1971
نویسندگان
چکیده
منابع مشابه
Some Prey Preference Factors for a Red-tailed Hawk
SEW•AL studies have reported selection against conspicuous prey. Dice (1947) reported differential selection against conspicuous phenotypes of mice (Peromyscus maniculatus) and Kaufman (1974a) showed that Barn Owls (Tyto alba) and Screech Owls (Otus asio) selected against conspicuous phenotypes of old field mice (Peromyscus polionotus). Metzgar (1967) reported that Screech Owls preferred transi...
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In this study, addled and viable Red-tailed Hawk eggs were compared in terms of pesticide levels, egg and eggshell parameters, and shell ultrastructure as determined by scanning electron microscopy. These values were then used to compare actual measurements against egg and eggshell indices commonly reported in the literature. Addled eggs of Red-tailed Hawks were of greater length, weight and vo...
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Suitability of degraded areas as breeding habitats can be tested through assessment of nest predation rates. In this study we estimated nest success in relation to several potential predictors of nest survival in the Stripe-tailed Yellow-finch (Sicalis citrina) breeding in abandoned mining pits at Brasília National Park. We monitored 73 nests during the 2007-breeding season. Predation was the m...
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Double-nesting behaviour, a rare breeding system in which females lay in two nests, one incubated by herself and the other one by her mate, could be considered an intermediate stage in the evolutionary trend from biparental to uniparental care of single clutches. We examined the occurrence and success of double-nesting behaviour in Red-legged Partridges Alectoris rufa in Central Spain. Clutch s...
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Nesting success of Ohio's endangered common tern (Sterna hirundo) population was studied during 1980 at Lucas County Port Authority Facility No. 3 (F3) located near Toledo in Maumee Bay, Lake Erie. Ninety-one clutches in three of eight tern subcolonies at this site were studied in detail. Sixty-nine percent (157/229) of the eggs failed to hatch, and abandonment of nests during incubation was re...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1971
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay3473