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Post-Fledging Parental Care in the Western Gull
The Condor, 1986Post-fledging parental care of Western Gulls (Larus occidentalis) was examined by following in-colony and post-dispersing movements of marked adults and young. At a large offshore colony, parental care ceased when young dispersed at a mean age of 70 days, but at some mainland and nearshore Western Gull colonies parental care may last longer.
Spear, Larry B. +2 more
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Mercury Concentrations in Post-Fledging Wood Storks
Waterbirds: The International Journal of Waterbird Biology, 2001-Mercury concentrations were measured in blood, down and feather samples collected from 20 postfledging Wood Storks (Mycteria americana) captured in the coastal zone of Georgia to establish a reference level for free-ranging storks utilizing this region and assess if mercury is present in potentially hazardous concentrations.
A. L. Bryan +4 more
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OBSERVATIONS ON THE POST-FLEDGING DEPENDENCE PERIOD OF CAPE VULTURES
Ostrich, 1985Summary Robertson, A. S. 1985. Observations on the post-fledging dependence period of Cape Vultures. Ostrich 56: 58–66. Cape Vultures were observed during their post-fledging dependence period at a colony in the Cape Province, South Africa. Information is presented on the length of the period, behaviour of juveniles and of parents at the nest, survival
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Post-fledging dispersal of Western Marsh Harriers (Circus aeruginosus)
2023There are only a few GPS-tracking studies on Western Marsh Harriers (Circus aeruginosus) in Europe which deal with large scale movements and migration. However, smaller movements have largely been ignored. Therefore, the focus of this study was the short post-fledging dispersal period after independence from the parents and before the onset of ...
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Influence of Condition and Habitat Use on Survival of Post-Fledging Songbirds
The Condor, 2011Abstract. Habitat quality of a bird's breeding grounds has been typically evaluated by investigating patterns in nesting success, whereas events that follow fledging have been largely ignored. One especially overlooked aspect of breeding-habitat quality is how habitat affects the survival of young birds after they leave the nest, a period when ...
Andrew C. Vitz, Amanda D. Rodewald
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Post-Fledging Ecology of Northern Pygmy-Owls in the Rocky Mountains
The Wilson Journal of Ornithology, 2012Abstract We investigated the post-fledging ecology of the Northern Pygmy-Owl (Glaucidium gnoma) at two study areas in the Rocky Mountains of Montana and Idaho from 2002 to 2009. We observed 16 successful nesting attempts that fledged from two to seven young. Fledging dates ranged from 18 June to 5 August and all nests were vacated within a 2-day period.
Graham G. Frye, Harry R. Jageman
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Effects of population growth on Crested Tit Parus cristatus post‐fledging settlement
Ibis, 1996From 1987 to 1993, the winter density of Crested Tits Parus cristatus in north Belgium increased 2.76 times. The increase was the result of high annual survival rates of both adult and first‐year birds despite a low reproductive success (number of fledglings per female) due to high predation of nestlings.
Lens, L., Wauters, L.A.
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Some Aspects of Post-fledging Behaviour in the Black-backed Magpie
Emu - Austral Ornithology, 1963(1963). Some Aspects of Post-fledging Behaviour in the Black-backed Magpie. Emu - Austral Ornithology: Vol. 63, No. 3, pp. 234-241.
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Post-Fledging Mobility in an Urban Landscape
2012Kara Whittaker, John M. Marzluff
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