Vigilance during food handling in grey squirrels, Sciurus carolinensis

Foraging and vigilance conflict in animals that lower their head during food search and handling, but it is less clear whether these activities conflict in animals that handle food with the head raised. In these species, at least part of the foraging process is physically compatible with vigilance. Nevertheless, both vigilance and food handling require […]

Movement and mortality of translocated urban-suburban grey squirrels

During summer and autumn of 1994-1997, we determined the movements and mortality of 38 adult male Eastern grey squirrels (Sciurus carolinensis) that had been captured in urban-suburban backyards and translocated to a large forest. The squirrels did not fare well. Squirrels not found dead or classified as ‘probable mortality’ disappeared from the forest with a […]