The Hearing of Birds

[caption id="attachment_10540" align="alignleft" width="172"] Cooper's Hawk listening[/caption] Birds’ songs and calls are important for survival. The ear of a bird is very much like that of a mammal’s with two important exceptions. The external ear lacks a pinna (the flesh-covered outer ear) although owls have one, and nstead of three…

Feeding Birds

According to the U.S. Fish and Wild­life Service, more than 50 million North Americans feed birds. That amounts to more than one million tons of seed directly provided to birds every year. As fall approaches, the avifauna (set of bird species in an area) changes with migration patterns and some…

Hot Birds

Birds and mammals like us, are homeothermic. We often say "" is a misnomer as tuna and lizards and worms and tuna can be warm blooded at times. Better to say homeothermic which means which means that mammals and birds maintain a fairly constant body temperature at all times. To…

Egg Dumping

[caption id="attachment_10414" align="alignleft" width="489"] Common Merganser[/caption] You may have seen the photo of a Common Merganser mom leading a brood of 76, yes, 76 ducklings. They are not all hers, of course, because there is no way she could sit on and incubate that many eggs. A pair of mergansers…