I compared the morphology and flight strategies of different hawk species with their flocking behavior during fall migration. I predicted that hawks that have morphologies adapted to soaring will be likely to form and migrate in flocks, while those taxa that have morphologies ill suited to soaring will be unlikely to form and migrate in flocks. I then documented the frequency with which various taxa were observed in flocks and the mean flock size for each during the fall migration seasons of 1992-1998. In general, my predictions of flocking frequency and flock size were similar to those observed for three major groups of hawks, (buteos, accipiters and falcons).
Christopher Shaw, ’00 Gardner, KS
Sponsor: Robert Black