Western Hognose Snake Heterdon nasicus
Western hognose snakes are medium-sized and can reach a length of 39
inches. The key characteristic of these snakes are their snouts, which act
like a shovel to burrow into loose soil. The coloration of their backs is
tan, brown, or yellowish-gray with dark blotches and 2-3 rows of spots on
their sides. Another characteristic is the pattern of large black blotches
on their bellies extending all the way to the tail.
When hognose snakes are disturbed or cornered they put on an amazing display.
They will inflate their bodies, hiss loudly, open their mouths wide and
attempt to strike. It is a pretty good show for a nonpoisonous snake. If
this display fails to deter a predator, they will roll over and play dead.
It is a very convincing act, with their mouths open and tongues hanging
out.
Bullsnake Pituophis catenifer
Bullsnakes are North Dakota's largest nonpoisonous snakes, reaching
lengths up to 83 inches. The average length for adults is about 60 inches.
The record length is 92 inches. Their coloration is yellowish to buff-brown
with a series of black or brown blotches on the back. The belly is yellow
with black mottling. The tail has black stripes which are inconsistent with
the other markings.
Racer Coluber constrictor
Racers are slender snakes of medium size with greenish-blue to gray
coloration on their backs, a bright yellow belly and a white patch on their
chins.
Racer - Juvenile Pattern
More snakes.
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