The largest of the rattlesnakes, this pit viper has been recorded at over 2 m (6 ft.) long. The Western Diamondback Rattlesnake (Crotalus atrox) is the target of the infamous Rattlesnake Roundup in Texas:
The project was originaly conceived by a group of area farmers and ranchers as an attempt to rid the abundance of Rattlers that were plaguing them and their livestock. The event has grown over the past 51 years to the “WORLD’S LARGEST RATTLESNAKE ROUND-UP” with over 123 tons of Western Diamondback Rattlesnakes turned in to date.
Despite the harvest, Diamondback Rattlers are not considered threatened at this time. However, the round-ups hearken back to an era of ignorance and superstition and are no longer justifiable. See the American Society of Ichthyologists and herpetologists position paper on Rattlesnake roundups for more information on rattlesnakes and their importance within an ecosystem.
Interested in collecting snakes? See how not to handle a rattler, from National Geographic.