Many songbirds produce simple, species-specific flight-calls. Some fundamental features of flight-calls remain poorly known, including their functions and variability. I reviewed available information on flight-calls and studied: (1) relationships between calling and weather; (2) seasonal flight-call use in warblers; (3) inter- and intraspecific variation in warbler flight-calls; (4) methods for analyzing flight-calls; and (5) relationships between warbler flight-calls and ecological and evolutionary characteristics.
Author: Andrew Farnsworth
Download BOOK »