While they are waiting for their mother to return, the fawns will lay on the ground with their heads and necks stretched out flat on the ground. This makes it harder for predators to find them. Female fawns may stay with their mother for two years, males usually leave after a year. Odocoileinae When white-tailed deer are alarmed, they may stomp their hooves and snort to warn other deer. When deer are running, this white underside can help fawns follow their mothers.
Deer are very good runners.
They can run at speeds of up to 30 mile an hour. They are also good leapers and swimmers. A deer's home range is usually less the a square mile. Deer collect in family groups of a mother and her fawns. When a doe has no fawns, she is usually solitary.