Osage copperhead - Agkistrodon contortrix
Description:
- 
VENOMOUS
 - 22-36 inches total length
 - Found in woodlands and brushy meadows near woodlands
 - Active during day when cool, at night when hot
 - Feeds on cicadas, small birds, frogs, toads, lizards, and snakes
 
Interesting fact:
- Hatchling and juvenile copperheads have bright yellow tails, which they wiggle enticingly to draw the attention of potential prey animals that think the tail tip is a juicy worm or caterpillar.
 
Range map in Kansas:
More images: