Eastern Gray Squirrel

The Eastern Gray Squirrel, *Sciurus carolinensis*, is a medium-sized arboreal rodent, typically weighing between 400 to 600 grams and measuring 40–50 cm in total length, including its prominent bushy tail which accounts for nearly half its body length. They exhibit two distinct breeding seasons: one beginning in late December through February, and another from May to June, with gestation lasting approximately 44 days and resulting in litters of 2–4 altricial kits. These young are weaned around 8–10 weeks and achieve sexual maturity at 10–12 months, contributing to a substantial reproductive capacity. Their longevity in the wild averages 6–12 years, though individuals have been known to live up to 20 years in protective environments. They are well-adapted to temperate climates, tolerating a wide range of temperatures and humidity levels, and are identified by their grizzled gray dorsal fur, white undersides, and often rufous patches on flanks and limbs.

Eastern Gray Squirrels are intensely diurnal, with peak activity observed during early morning and late afternoon, primarily foraging in trees and on the ground. They are highly agile climbers, utilizing sharp claws and muscular hind limbs, facilitating rapid ascent and descent on various surfaces, including brick, wood, and utility lines. Their communication repertoire includes a range of vocalizations—chattering, chuk-chuks, quaaas—and tail flicking, used for alarm and social interaction. While generally solitary, they may tolerate others in communal winter dens. Their gnawing behavior is critical for dental health, as their incisors grow continuously, leading to significant structural damage to wood, wiring, and insulation. They do not hibernate but enter torpor during severe winter weather, conserving energy.