Nest loss in willow ptarmigan (Lagopus lagopus lagopus) was studied during 4 seasons on a small island in northern Norway. Territorial hooded crows (Corvus corone) were the most important nest ...
The occurrence of dung beetles in the diet of hooded crows (Corvus corone cornix L.) was examined in order to identify possible biases in predation that could influence the structure of local dung ...
Two hooded crows in a lab have wowed their human colleagues by passing a test designed to see whether animals can grasp analogies. The test presents a sample card showing two symbols, such as two ...
They might not understand what they have in common with brothers of the Night’s Watch or why “as the crow flies” means traveling in a straight line, but hooded crows are capable of analogical ...
Although carrion crows and hooded crows are almost indistinguishable genetically, they avoid mating with each other. Researchers from Ludwig-Maximlian-Universitaet (LMU) in Munich have now identified ...
The two taxa, which have recently been raised to species status (Parkin et al., 2003), are geographically distributed in a leapfrog pattern, with carrion crows inhibiting western Europe and eastern ...
Although carrion crows and hooded crows are almost indistinguishable genetically, they avoid mating with each other. Researchers have now identified a mutation that appears to contribute to this ...