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Showing 1 to 7 of 7 for “"Birds -- Behavior"”.
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SIMPLE AND CONTINGENT CHROMATIC AFTEREFFECTS IN PIGEONS
… of six different hues, added sequentially. Behavior on the first day each new color was added and on two transfer tests involving novel stimuli indicated that a 'chromaticity' concept had been acquired by all four birds.</p><p>In Experiment II, an attempt was made to demonstrate the …
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Post-fledging habitat use and movements of worm-eating warblers in the Tennessee River Gorge
Declines in Neotropical migratory birds have been observed over the past several decades. Species with particular habitat needs, termed ‘specialists’, are especially at risk given continual habitat loss. These downward trends have prompted researchers to investigate species’ life histories and …
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Vocalization Behavior of the Endangered Bahama Oriole (Icterus northropi): Ontogenetic, Sexual, Temporal, Duetting Pair, and Geographic Variation
Many birds communicate via a diverse set of vocalizations, but the contexts, roles, and structure of their varied songs and calls may change with age, differ between sexes, and vary temporally and geographically. In New World orioles, most tropical species exhibit the ancestral states of sexual …
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Behavioural, mensural, and ecological correlates of polygyny in the eastern meadowlark (Sturnella magna)
During 1982 and 1983 I studied male attributes and attributes of the territory of male Eastern Meadowlarks (Sturnella magna) in order to determine whether there was a correlation between any of the attributes investigated and the number of females attracted by a male. Seventeen males, nine of which …
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The effects of effort and day of exposure on imprinting
24 pairs of newly-hatched Leghorn chicks were randomly divided into 3 groups. Ss in one group followed a moving object for 30 min on Day 1 of life; Ss in another group followed for 30 min on Day 2; Ss in the remaining group followed for 15 min on Day 1 and 15 min on Day 2. One S in each pair …