Gary Fewless, Cofrin Arboretum Center
for Biodiversity
Olympus CL 2500L digital camera
Red-tail Hawk eating Eastern Cottontail
Midwinter typically brings the most severe tests for
animal survival. As food becomes scarce and cold weather imposes excessive
energy demands, mortality rates for many species reach their highest levels.
Sometimes the need for food overcomes caution and we see animals behaving
in unexpected ways. This young Red-tailed Hawk killed and ate an Eastern
Cottontail (rabbit) at the edge of a sidewalk adjacent to the UW-Green
Bay Laboratory Science Building. The bird showed little concern for students
and staff on their way to work and allowed this photo from just a few
meters away.
Similar survival pressures exist for smaller birds. When
temperatures fall below zero most small songbirds can survive only a matter
of hours without food. Their bold pursuit of energy may cause them to
act as though they have no fear of people or potential enemies. Black-capped
Chickadees and other small birds are even known to land on surprised winter
hikers!