National Wildlife Refuge System

Calls of the Wild

 

Pileated Woodpecker
Credit: USFWS

Pileated Woodpecker
Fact - Pileated woodpeckers create large holes in dead trees and stumps to
look for carpenter ants, termites and other bugs to eat. These woodpeckers also
dig out oblong holes in trees to use as nests.       PDF (258 KB)

Hear the pileated woodpecker here

 

 

Grizzly Bear
Credit: USFWS

Grizzly Bear
Fact - Newborn grizzly bear cubs are blind, toothless and almost harmless.
They are eight inches long and weigh a little more than a pound. They are born
in the winter and stay in the den with their mother until spring.       PDF (424 KB)

Hear the grizzly bear here.

 

 

Elk
Credit: USFWS

Male Elk
Fact - Male elk shed their antlers each winter. New antlers are covered with
a soft layer of skin called velvet.       PDF (129 KB)

Hear the elk bugling here.

 

 

Alligator
Credit: Stacy Shelton/USFWS

American Alligator
Fact - The word "alligator" originated from the Spanish "el legarto,"
which means "the Lizard."       PDF (129 KB)

Hear the alligator bellow here.

 

 

Rattlesnake
Credit: Aaron Drew/USFWS

Rattlesnake
Fact - A rattlesnake's rattle comes from interlocking rings of keratin, a material
like fingernails. A ring is added each time the snake sheds its skin. When vibrated,
the rings make a hissing sound that ward off predators. Young rattlesnakes have
no rattles and some older adults lose their rattles.       PDF (1 MB)

Hear the snake's rattle here.

 

 

Last updated: September 15, 2014