Collie's squirrel

Collie's squirrel (Sciurus colliaei) is a medium-sized tree squirrel in the genus Sciurus that is endemic to Mexico. It is native to the western coast of the country, from Sonora and Chihuahua south through Sinaloa, Durango, Nayarit and Jalisco to Colima, and it lives in thick tropical and subtropical vegetation, including subtropical canyons in the northern part of its range. It is sometimes called the gray squirrel in Mexico because of its gray coat: the back is darker gray with a yellowish wash toward the tail base, the sides are lighter gray and the underside is usually white, though it can be light orange. The upper tail is black with a wash of white. Recorded females average about 243 millimetres from head to tail base and 440 grams, males about 249 millimetres and 335 grams. The squirrel is diurnal, most active just after sunrise and before sunset, nests on outer branches, in tree cavities and in abandoned termite nests, and eats the fruits and nuts of palms, figs and possibly oaks. It is believed to breed in March and April.