Lecture: Bird Bills
Weld Hill Research Building 1300 Centre Street, Roslindale, MA, United StatesBird bills come in all sorts of sizes and shapes, from the needle-like bills of swallows for picking insects out of the air, to hummingbirds' long and curved bills for probing into the base of a flower, to the robust bill of the evening grosbeak for cracking into seeds. Some even have special features, like […]