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This is a list of snake species known to be found in the U.S. state of Illinois. [1] Concerns and listed statuses come from the Illinois Endangered Species Protection Board's February 2011 Checklist of endangered and threatened animals and plants of Illinois and the Illinois Natural History Survey's website. [1] [2]
Soon after feeding, close to the end of summer, the adult snakes return to their dens for winter hibernation. [4] The young snakes, around one-year-old, spend more time in marshy areas to find food before the winter temperatures arrive and hibernate there as their small size makes them unnoticeable to predators. [8]
At which temperature do snakes hibernate? In the 60s °F: Snakes will begin moving toward hibernation sites. In the 50s °F and below: Snakes consistently stay in their places in the ground.
Snakes that have just eaten are more likely to strike a predator or stimulus than snakes that do not have a full stomach. Snakes that have just eaten a large animal are less mobile. [19] Another factor that controls the antipredatory response of the garter snake is where on its body the snake is attacked.
The City of Naperville Animal Control says there are 39 different species of snakes that live in Illinois, four of which are venomous. Luckily, the garter snakes invading Naperville are a ...
Courtship usually occurs near the communal hibernation site, and polygynous mating systems have been observed. [5] The snake's typical diet consists of earthworms, slugs, and small amphibians, [4] [6] including the larvae of salamanders. [5] It has also been observed eating small mammals and birds, such as bank swallows and eastern meadowlarks. [6]
When the temperatures begin to drop, snakes go into a state called brumation.This event acts as a type of hibernation for cold-blooded animals. “Cold temperatures cause reptiles and amphibians ...
Studies have indicated these snakes learn to improve their strike accuracy over time. [11] Many temperate species of pit vipers (e.g. most rattlesnakes) congregate in sheltered areas or "dens" to overwinter (brumate, see hibernation), the snakes benefiting from the combined heat. In cool temperatures and while pregnant, pit vipers also bask on ...