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Showing 1 to 8 of 8 for “"Blue Jay"”.
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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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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
… with or without outside input. Eight orphaned blue jays (consisting of both hatchlings and nestlings) were brought into the care of the Bird Center of Washtenaw County, Inc. in Ann Arbor, Michigan. Birds were videotaped and observed for the development of caching behavior, cache item and cache …
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Insights into the nature of dust attenuation in relation to galaxy evolution from local to cosmic noon galaxies
… galaxies observed at cosmic noon with the Blue Jay collaboration. We study the shape of the attenuation law and show that there is a large diversity correlated with the dust content, stellar mass, and SFR. We also observe the relationship between dust attenuation and stellar mass for …
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Recovery of cached food by captive blue jays (Cyanocitta cristata)
… Clark1s 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 …
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Vocal responses of Blue Jays (Cyanocitta cristata) to raptors that differ in predatory threat
… Crows (Corvus brachyrhynchos) and Siberian Jays (Perisoreus infaustus), use referential calls to convey information about predator presence and level of threat. Because of their intelligence and flocking behavior, Blue Jays, like American Crows and Siberian Jays, may use referential calls to …
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Characteristics, contexts, and possible functions of the vocalizations of Blue Jays
<p>Many species 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 …
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Affording landscape
… in this case involving the caching behavior of blue jays, to help form landscape. In developing this new relationship, we can take advantage of thousands of years of mutual evolution between jays and tree species. By increasing or effectively turning up one behavior (satiation of blue jays so …
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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
… sites, we 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 …