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Song as an aggressive signal in songbirds
Birdsong is often regarded as an aggressive signal. More specifically, particular singing behaviours are hypothesized to be threatening, including song type matching, frequency matching, songExpand
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Seasonal Changes in Testosterone, Neural Attributes of Song Control Nuclei, and Song Structure in Wild Songbirds
Seasonal changes in the neural attributes of brain nuclei that control song in songbirds are among the most pronounced examples of naturally occurring plasticity in the adult brain of any vertebrate.Expand
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Functional aspects of song learning in songbirds.
The oscine passerines, or 'songbirds', are one of the few animal taxa in which individuals learn their vocal signals. Recent comparative studies reveal a remarkable diversity of song-learningExpand
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Territory tenure in song sparrows is related to song sharing with neighbours, but not to repertoire size
Song repertoires may be a product of sexual selection and several studies have reported correlations of repertoire size and reproductive success in male songbirds. This hypothesis and the reportedExpand
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Repertoire matching between neighbouring song sparrows
A male song sparrow,Melospiza melodia, has a song repertoire of about eight or nine distinct song types, and he typically shares several of these song types with each of his several neighbours. InExpand
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Song-type matching in the song sparrow
Song playback to song sparrows (Melospiza melodia) in a resident population in Washington state showed that the tendency of birds to respond with the same song type (match) depended on the identityExpand
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Song learning in birds: diversity and plasticity, opportunities and challenges
A common trend in neuroscience is convergence on selected model systems. Underlying this approach is an often implicit assumption that mechanisms observed in one species are characteristic of allExpand
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Song type matching as threat: a test using interactive playback
Neighbouring song sparrows, Melospiza melodia, in our Seattle population share song types and sometimes respond to neighbour song by type matching (replying with the same song type being sung) orExpand
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Song type matching is an honest early threat signal in a hierarchical animal communication system
Aggressive encounters between animals often involve significant amounts of signalling before or in lieu of physical fights. When, as is often the case, these apparent threat signals are neitherExpand
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Ecological correlates of song learning in song sparrows
Most studies of song learning have been conducted in the laboratory, and thus little is known about how song learning is affected by ecological variables in nature. Taking an ecological perspective,Expand
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