The features given here apply only to Kansas snakes and may not be
applicable elsewhere. Even in Kansas, there are some non-poisonous
snakes which exhibit either the tail or eye characteristics given for
poisonous snakes, but none have the pit. It probably need not be pointed
out that these features can be seen only when the snake can be examined
closely. Certainly, every snake should not be picked up to look for
these characteristics! A warning is necessary at this point--reflex
action can cause an apparently "dead" snake to bite, so do not handle
"dead" snakes with the hands; use a stick. The best way to be able to
identify a poisonous snake is to know _all_ of the venomous snakes of
your region by sight. Color and pattern are distinctive and are easily
learned.