Plus, prairie rattlesnakes have keeled or ridged scales that make them look rough and bristly. Timber Rattlesnake | Oklahoma Department of Wildlife Conservation Most varieties of rattlesnakes are not endangered, but one that is endangered is the timber rattlesnake. Twenty to 29 dark, V-shaped crossbars with jagged edges form a distinctive pattern across their back. What is the largest timber rattlesnake on record? They will coil beside a fallen tree or log and wait for their quick-moving prey to pass. Close examination on the top of the head will reveal tiny scales on the western pygmy rattlesnake and large scales on timber rattlesnakes. These cookies will be stored in your browser only with your consent. ANSWER LINE NOTE: I took a day off a week ago, and my friends in the newsroom picked some past questions to appear in my usual column space. How do you keep rattlesnakes off your property? Venomous Snake Safety Texas Parks & Wildlife Department The cookie is used to store the user consent for the cookies in the category "Performance". Dorsal scales are heavily keeled and scales under the tail are not divided as in most non-venomous snakes. The venom expenditure is reduced by the use of denim clothing. Timber rattlesnake (Crotalus horridus) also known as Canebreak rattlesnake is a large, heavy-bodied snake averaging 4-1/2 feet. However, timber rattlesnake bites are rare. This list explains the reason rattlesnakes (compared to other animals) are becoming an endangered species because of humans. When walking in the dark, be sure to have a flashlight. Winds light and variable.. There is also a very narrow white line just below this dark cheek stripe. I am sure that more suitable arrangements could have been made to take care of this beautiful specimen rather than this unthinkable and useless slaughter by this officer and I most certainly think that he was aware that this is a protected species under Texas law. Not as Fiesta by the numbers: 2.5M people, 100K oysters and more, SAPD calls: Body in flooded creek; man dead after hit by train, San Antonio eyes stickers in fight against domestic violence, Man accused of strangling neighbor to death in apartment, SA's last Tuskegee Airman buried at Fort Sam. On ExpressNews.com: A billboard at the San Antonio airport calls the city a 'Winter Wonderland.' Scientists grouped them into two venom groups, calling them Venom A and Venom B. Venom A contains Mojave toxin, while Venom B doesnt. Like all rattlesnakes the timber rattlesnake is venomous, and therefore dangerous if disturbed.