Avian prey-dropping behavior. II. American crows and walnuts
نویسندگان
چکیده
منابع مشابه
West Nile Virus Detection in American Crows
A dipstick immunochromatographic assay used for West Nile virus (WNV) detection in mosquitoes was investigated for application to testing of fecal, saliva, and tissue samples from dead American Crows (Corvus brachyrhynchos). Results suggest that VecTest may be an efficient method for WNV detection in field-collected, dead American Crows, although confirmation of results and further investigatio...
متن کاملUn-paint it black: Avian prey as a component of the diet of nestling Hooded Crows Corvus cornix
The Hooded Crow (Corvus cornix) is often considered the main nest predator of many bird species, especially waterbirds. Such relationship should be particularly clear during the breeding season in wetlands, when the need to supply their nestlings with the highest quality foods forces predators to intensify their hunting activities. Hence, waterbirds should be their basic prey. We examined the c...
متن کاملGrape juice, berries, and walnuts affect brain aging and behavior.
Numerous studies have indicated that individuals consuming a diet containing high amounts of fruits and vegetables exhibit fewer age-related diseases such as Alzheimer's disease. Research from our laboratory has suggested that dietary supplementation with fruit or vegetable extracts high in antioxidants (e.g. blueberries, strawberries, walnuts, and Concord grape juice) can decrease the enhanced...
متن کاملDemographic and behavioral comparisons of suburban and rural American Crows
American Crows (Corvus brachyrhynchos) have become common suburban and urban birds in the last 50 years, using these environments for roosting and breeding. I studied crows in upstate New York from 1989 to 1999, and compared reproductive success, survival, and social behavior of crows in suburban and rural areas. Although both suburban and rural crows maintained permanent territories, suburban ...
متن کاملWest Nile Virus and High Death Rate in American Crows
We document effects of West Nile virus (WNV) on American Crows. More than two thirds of our crows died of WNV infection, peaking when the proportion of infected mosquitoes at roosts was greatest. WNV antibody prevalence in crows was low. Local ecologic effects can be dramatic as WNV inhabits new areas.
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 1999
ISSN: 1465-7279
DOI: 10.1093/beheco/10.3.220