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Showing 1 to 8 of 8 for “"Cyanocitta cristata"”.
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Recovery of cached food by captive blue jays (Cyanocitta cristata)
… Nutcracker (Nucifraga columbiana). Blue Jays (Cyanocitta cristata) are important dispersers of Quercus, Fagus, and Castanea nuts in eastern North America and their caching behavior in the wild has been well documented. Recovery of caches by the same individual Blue Jay that created the caches …
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Vocal responses of Blue Jays (Cyanocitta cristata) to raptors that differ in predatory threat
<p>Anti-predator defense is an important adaptation in group-living organisms. Some species of flocking birds use referential calls to communicate predator presence and the level of threat posed by predators. Previous studies have revealed that two species in the corvid family, American Crows …
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The development of caching behavior, cache site and cache item defense tactics, and cache site and cache item sharing in orphaned fledgling blue jays (<i>cyanocitta cristata</i>) at a songbird rehabilitation center
<p>One of the primary goals of songbird rehabilitators is to promote controllable factors that increase survivorship in orphaned songbirds upon to release. As caching serves an important function in corvid life, this study sought to determine if this behavior would develop with or without outside …
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Acorn Caching and Consumption of Weevil-infested Nuts: Possible Means of Tannin Circumvention for the Blue Jay
Blue jays (Cyanocitta cristata L.) are important predators on and dispersers of nuts of oaks and other Fagaceous trees in eastern North America. Acorns comprise much of the jay diet (Beal 1896), especially during the autumn months when jays may consume or cache a significant portion of an acorn …
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Characteristics, contexts, and possible functions of the vocalizations of Blue Jays
… in the family Corvidae, including Blue Jays (Cyanocitta cristata), are known to have large vocal repertoires. However, perhaps due to its perceived complexity, few investigators have attempted to describe the vocal repertoire of Blue Jays. Therefore, my objectives were to describe the vocal …
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Bird utilization of habitat in residential areas
… (winter R² =0.82, spring R²=0.70). Blue jays (Cyanocitta cristata) preferred wooded, less open neighborhoods; (winter R²=0.65, spring R²=0.79). House wrens (Troglodytes aedon) were correlated with area of gardens and moderately high deciduous cover; (spring R²=0.40). Mockingbirds (Mimus …
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Assessing the relationships between pollinator-friendly plantings and birds, bats and white-tailed deer on farms in the Coastal Plain of Virginia and Maryland
… found that during Spring surveys, the blue jay (Cyanocitta cristata) and Carolina wren (Thryothorus ludovicianus) had lower density on pollinator farms. In the Fall, the blue grosbeak (Passerina caerulea) had higher density on pollinator farms. We found nesting in the pollinator-friendly plots by …
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Affording landscape
In line with a new way to look at materials, waste streams, and opportunities to utilize existing processes within our environment, this project examines the potential for developing interspecies relationships, in this case involving the caching behavior of blue jays, to help form landscape. In …