The White-tailed Deer is native to much of North America, Central America and northern South America. It has also been introduced to Scandinavia and New Zealand.
The related Black-tailed Deer (also called Mule Deer in view of its mule-like ears) replaces the White-tailed in the far west of North America.
The photos above left/centre and below are by Alexandra Makhnina, taken in Mexico. The photo above right was taken in New Zealand.
The buck (sometimes called stag but since the female is a doe
the male would usually be called a buck) grows branched
antlers each year. The White-tailed Deer is named after the
white underside of the tail which is raised like a feather
duster in alarm, alerting other deer and other animals to danger.