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Birds of a Feather: Homophily in Social Networks
, 2001Similarity breeds connection. This principle—the homophily principle—structures network ties of every type, including marriage, friendship, work, advice, support, information transfer, exchange, comembership, and other types of relationship.
M. McPherson, L. Smith-Lovin, J. Cook
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Heritable true fitness and bright birds: a role for parasites?
Science, 1982Combination of seven surveys of blood parasites in North American passerines reveals weak, highly significant association over species between incidence of chronic blood infections (five genera of protozoa and one nematode) and striking display (three ...
W. Hamilton, M. Zuk
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2023
A little later — bright weather. — An unusual melodiousness, these days, (last of April and first of May) from the blackbirds; indeed all sorts of birds, darting, whistling, hopping or perch’d on trees.
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A little later — bright weather. — An unusual melodiousness, these days, (last of April and first of May) from the blackbirds; indeed all sorts of birds, darting, whistling, hopping or perch’d on trees.
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, 1978
1983 — Handbook of the Birds of Europe, the Middle East and North Africa. The Birds of Western Palearctic, vol. 3 — Oxford University Press, Oxford, 913 pp.
H. Southern, S. Cramp
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1983 — Handbook of the Birds of Europe, the Middle East and North Africa. The Birds of Western Palearctic, vol. 3 — Oxford University Press, Oxford, 913 pp.
H. Southern, S. Cramp
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Population Limitation in Birds
, 1998Preview. Behaviour and Density Regulation: Social Systems and Status. Habitat and Density Regulation. Territorial Behaviour and Density Limitation. Density Dependence in Bird Populations. Habitat Fragments and Metapopulations.
I. Newton, K. Brockie
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A simple and universal method for molecular sexing of non-ratite birds
, 1999Molecular sexing is an attractive means to determine the sex of sexually monomorphic birds, e.g. chicks of most species. A universal approach for molecular sexing of birds would require that a conserved W chromosome-linked sequence could be analysed, but
A. Fridolfsson, H. Ellegren
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Nature, 1998
Birds were once thought to have a large number of features exclusive to the group. One by one those features have also been identified in fossils of certain theropod dinosaurs. Now feathers join the list.
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Birds were once thought to have a large number of features exclusive to the group. One by one those features have also been identified in fossils of certain theropod dinosaurs. Now feathers join the list.
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, 2018
Birdwatching in Japan systematic list of species a select bibliography of Japanese ornithology.
M. Brazil, M. Yabuuchi
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Birdwatching in Japan systematic list of species a select bibliography of Japanese ornithology.
M. Brazil, M. Yabuuchi
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Common European birds are declining rapidly while less abundant species' numbers are rising.
Ecology Letters, 2015Biodiversity is undergoing unprecedented global decline. Efforts to slow this rate have focused foremost on rarer species, which are at most risk of extinction. Less interest has been paid to more common species, despite their greater importance in terms
Richard Inger +5 more
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Direct Mortality of Birds from Anthropogenic Causes
, 2015Understanding and reversing the widespread population declines of birds require estimating the magnitude of all mortality sources. Numerous anthropogenic mortality sources directly kill birds.
S. Loss, Tom C. Will, P. Marra
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