Results 21 to 30 of about 1,057 (155)
Background The objective of this evaluation was to determine whether reports of dead corvid sightings and submissions of dead corvids for West Nile virus testing were representative of true corvid mortality in British Columbia in 2004, a year with no ...
MacDougall Laura +3 more
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Function and flexibility of object exploration in kea and New Caledonian crows [PDF]
A range of non-human animals frequently manipulate and explore objects in their environment, which may enable them to learn about physical properties and potentially form more abstract concepts of properties such as weight and rigidity.
Megan L. Lambert +6 more
doaj +1 more source
Waste Disposal Sites as All-You-Can Eat Buffets for Carrion Crows (Corvus corone)
In cities and densely populated areas, several corvid species are considered nuisance animals. In Austria, particularly carrion (Corvus corone) and hooded crows (C. cornix) are regarded as pests by the general public that frequently cause damage to crops,
Doris Preininger +3 more
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The Onchocercidae family is composed of more than 30 valid nematode species with notable zoonotic potential. Current limitations in molecular characterization methods and species identification are the main obstacles to a better understanding of the ...
Tingting Wu +8 more
doaj +1 more source
Abstract We argue that at least some corvids morally ought to be granted a right to bodily liberty in the US legal system and relevantly similar systems. This right would grant immunity to frivolous captivity and extermination. Implementing this right will require new legislation or the expansion of existing legislation including the ...
Mark Wells, Scott Simmons, Diana Klim
openaire +1 more source
Susceptibility of Carrion Crows to Experimental Infection with Lineage 1 and 2 West Nile Viruses
West Nile virus (WNV) outbreaks in North America have been characterized by substantial die-offs of American crows (Corvus brachyrhynchos). In contrast, a low incidence of bird deaths has been observed during WNV epidemic activity in Europe.
Stephanie M. Lim +9 more
doaj +1 more source
Land use and landcover change alter the ability of habitat networks to maintain viable species populations. While their effects on the quality, amount and patterns of landcover patches are commonly studied, how they affect ecological processes, such as ...
Michael Manton +2 more
doaj +1 more source
AVIAN chlamydiosis is primarily caused by the intracellular bacterium Chlamydia psittaci , belonging to the Chlamydiaceae family. Depending on the species and age of the bird and the virulence of the infectious bacterial strain, avian chlamydiosis can be subclinical or characterised by respiratory, digestive, or systemic disorders (Knittler and others ...
DI FRANCESCO, ANTONIETTA +7 more
openaire +4 more sources
Current bird populations in southern temperate latitudes often represent relicts of glacial refugia from which northern populations expanded as the climate became suitable following the last glacial maximum, 18 000 years before present.
Pablo Salinas +5 more
doaj +1 more source
Sex-specific effects of cooperative breeding and colonial nesting on prosociality in corvids
The investigation of prosocial behavior is of particular interest from an evolutionary perspective. Comparisons of prosociality across non-human animal species have, however, so far largely focused on primates, and their interpretation is hampered by the
Lisa Horn +14 more
doaj +1 more source

