User:CalNatHistory/Crotalus Oreganus

Crotalus Oreganus like to mate in concealed areas, like burrow entrances or rock crevices because the mating snakes are quick to separate when disturbed. This type of snake, among many types of snakes, use many types of sensory inputs like sound, movement, infrared, and scent in order to detect prey. Studies have shown that seasons can influence rattlesnake movements and spacial ecology, but they effect males more than females. The mating season in particular can effect spacial ecology. Their spacial ecology has also been proven to be effected by their size.

Pregnant females were not observed to feed in British Columbia, though they were in other regions. Juveniles will feed off of lizards rather than small mammals in certain areas. Their diet will change as their venom composition shifts as they age. They are primarily active during cooler weather in the day and during hot summer evenings and nights. In most regions, they are active from April to November. However, in warmer climates such as in Southern California, they may be found above ground at any month of the year.

The snake can occupy a variety of habitats, ranging from coastal dunes to shrubby canyons and mountain forests. Although primarily terrestrial, it will occasionally climb into trees or shrubs. While stationary, it occupies burrows, caves, crevices, or other sequestered areas.

Due to loss of habitat, egg production has decreased, leading to a decline in the overall population.