Research
at the Center for Avian Cognition spans a broad array of behavioral
and cognitive studies, united by the view that animal intelligence
is responsive to specific evolutionary and ecological demands. We pursue
several lines of research, each of which combines psychological and biological
perspectives.
One line
of research explores the cognitive mechanisms of visual search in
blue jays, and the effects of these mechanisms, particularly
selective attention, on the evolution of the appearance of their
prey.This research examines the effects of cognitive processes in
predatory blue
jays on the evolution of populations of virtual prey. Using genetic
algorithms that specify the phenotypes of digital moths, we have
been able to shed
light on a number of evolutionary questions, such as the origin of
cryptic polymorphism, that were otherwise inaccessible to experimental
analysis.
A second
program explores mechanisms of spatial cognition in Clark's nutcrackers
and other seed-caching corvids, with an emphasis on how landmarks
are used to re-locate specific sites.
A third
program employing both field observations and laboratory experiments
uses comparisons between related species to explore the evolution
of social cognition in jays and magpies and the adaptive significance
of behavioral flexibility, particularly as it relates to affiliative
behavior and vocalizations, in parrots.