Journal of Ornithology
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Ultraviolet-blue plumage colouration can be perceived as an indicator of fluctuating asymmetry by Blue Tits (Cyanistes caeruleus)
Journal of Ornithology - - 2011
Scanning behaviour of foraging Ruffs Philomachus pugnax during spring migration: is flock size all that matters?
Journal of Ornithology - - 2011
Orientation of shorebirds in relation to wind: both drift and compensation in the same region
Journal of Ornithology - Tập 154 - Trang 385-392 - 2012
Migratory movements in air or water are strongly affected by wind and ocean currents and an animal which does not compensate for lateral flow will be drifted from its intended direction of movement. We investigated whether arctic shorebirds during autumn migration in the region of South Sweden and the southern Baltic Sea compensate for wind drift or allow themselves to be drifted when approaching ......
Phylogeny, migration and life history: filling the gaps in the origin and biogeography of the Turdus thrushes
Journal of Ornithology - Tập 160 - Trang 529-543 - 2019
Although the biogeographic history of thrushes (Turdidae) has been extensively studied, a concise discussion of this topic is still lacking. Therefore, in this study we aimed to investigate: (1) the evolutionary origin of the migratory behaviour of the Turdus thrushes in a biogeographic context including (2) trans-Atlantic dispersal events, (3) possible colonization routes into the Nearctic, and (......
Mass occurrence and habitat selection of Common Redpolls (Carduelis flammea) after a large seed crop year: snow-covered ground facilitates food access
Journal of Ornithology - Tập 162 - Trang 1087-1099 - 2021
In boreal forests, food supplies typically have cyclic variations, and many species here fluctuate in numbers from year to year. One group of species showing large variations in population size is birds specialized on seeds from masting trees. Here, I analyze spatial patterns of a mass occurrence and habitat selection of the Common Redpoll (Carduelis flammea) during the breeding season in southeas......
The frequency distribution of lead concentration in feathers, blood, bone, kidney and liver of golden eagles Aquila chrysaetos: insights into the modes of uptake
Journal of Ornithology - Tập 156 Số 4 - Trang 1095-1103 - 2015
Predatory risk favours intermittent incubation of a colonial burrowing shorebird, the Crab Plover Dromas ardeola
Journal of Ornithology - Tập 158 Số 4 - Trang 1081-1090 - 2017
Intermittent incubation in birds is currently interpreted as the result of trade-offs between the needs of the embryo and those of the parents. However, the low nest attendance in some species is still puzzling. We studied the Crab Plover (Dromas ardeola), a tropical burrow nesting shorebird with very low incubation constancy (less than 55%) due to frequent recesses from incubation (on average 5&n......
Use of anthropogenic material affects bird nest arthropod community structure: influence of urbanisation, and consequences for ectoparasites and fledging success
Journal of Ornithology - Tập 158 - Trang 1045-1059 - 2017
Nests are a critically important factor in determining the breeding success of many species of birds. Nevertheless, we have surprisingly little understanding of how the local environment helps determine the materials used in nest construction, how this differs among related species using similar nest sites, or if materials used directly or indirectly influence the numbers of offspring successfully......
The extent of white plumage patches in female Pied Flycatchers Ficedula hypoleuca is negatively associated with corticosterone concentration in partly unpigmented feathers
Journal of Ornithology - - 2021
Indications of phenotypic plasticity in moulting birds: captive geese reveal adaptive changes in mineralisation of their long bones during wing moult
Journal of Ornithology - - 2011
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