The coat-tail effect in merged flocks of dark-eyed juncos: social status depends on familiarity
Article Abstract:
The presence of the highest-ranked bird in a flock of darked-eyed juncos is essential for a 'coat-tail effect' to occur. It has been observed that when two flocks of these birds combine, one group maintains a higher social status. Observations suggest that the attitude of the highest ranking bird in each flock towards the other flock will determine this social status, a process known as the coat-tail effect. In meetings of flocks for whom the highest ranking member is absent, no coat tail effect is observable.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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Migratory dark-eyed juncos, Junco hyemalis, have better spatial memory and denser hippocampal neurons than nonmigratory conspecifics
Article Abstract:
A study was conducted to determine whether the evolution of migratory behavior in dark-eyed juncos called Junco hyemalis led to cognitive and neuroanatomical changes. Due to low statistical power results were not concluded and further testing of spatial memory on a landscape scale is suggested.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2003
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Differential assessment of environmental information in a migratory and a nonmigratory passerine
Article Abstract:
In a novel environment migrants are predicted to assess relevant information faster than nonmigrants. This prediction is tested with two closely related species, the migratory garden warbler, Sylvia borin, and the resident Sardinian warbler, S. melanocephala momus.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2004
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