Rattlesnake diet is mostly rodents but they will eat birds as well, and baby birds are a delacacy. Wiki User October 03, 2010 1:05AM. How big can the diamondback rattlesnake get? With regards to weight, timber rattlesnakes are heavy-bodied and quite thick. this was a diamond back ratteler in these parts. it alone. There are no recognized subspecies of this species. Timber rattlesnake is a species of poisonous snake found in the eastern United States. Timber Rattlesnake (Crotalus horridus)Other Names Canebrake Rattlesnake Texas Status Threatened Description Timber rattlesnakes have wide heads and narrow necks—a typical distinction of all venomous snakes except coral snakes (Micrurus fulvius).Timber rattlers are the second largest venomous snake in Texas and third largest in the United States. Measuring from 3 to 4.5 feet or more in length, the timber rattlesnake is the largest venomous snake in New York. According to one website, Freeman's find is a record. Wiki User February 19, 2016 9:44PM. The largest known timber rattlesnake was just over 6 feet long. I made a … Ranging in size from just over 12 inches to 26 inches, this snake can be found primarily in Arizona and New Mexico. The Northern Pacific Rattlesnake (that is common to the area) can reach a length of slightly over 4 feet long (sometimes longer). While snakes like anacondas and pythons can exceed that length, it is very uncommon for a timber rattlesnake to be this big. The length of the gestation period varies some from breed to breed. This snake was found Near the St. Augustine outlet, in a new KB homes subdivision just south of Jacksonville FL. Timber rattlers are the second largest venomous snake in Texas and third largest in the United States. This event was documanted by the Lincoin County News. Of all rattlesnake species, the ridge-nosed is the smallest. Despite their size, cryptic coloration allows them to be easily concealed. In the case of the timber rattler, females may be pregnant for as long as five months. In general, a rattlesnake's gestation period lasts about 90 days, but some breeds, like the timber rattlesnake, can be pregnant for longer. In general, a rattlesnake's gestation period lasts about 90 days, but some breeds, like the timber rattlesnake, can be pregnant for longer. How Long does a Diaomandback rattlesnake get in langth? It was an eastern diamondback rattlesnake that measured 7 feet, 3 inches in length. These species consists of the sensory pits on either side of the head that can sense heat easily. These snakes can handle high elevation and are found everywhere from sea level to 11,000 feet (3,353 m), according to the San Diego Zoo. The eastern and western diamondbacks can reach, or exceed, seven feet but an average would be 3-5 feet in length. Some Exciting Facts about Timber Rattlesnake. Timber Rattlesnake Pictures Gallery There are no recognized subspecies of this species. This is a 15 foot Eastern Diamondback rattlesnake - the largest ever caught on record, in fact. This is the only rattlesnake species in most of the populous northeastern United States and is second only to its cousins to the west, the prairie rattlesnake , as the most northerly distributed venomous snake in North America .