1. Abert's squirrel - Abert's squirrel or the tassel-eared squirrel (Sciurus Aberti) is a tree squirrel in the genus Sciurus native to the southern Rocky Mountains from the United States to the northern Sierra Mad

2. The pine squirrels (Tamiasciurus), on the other hand, are usually included with the main tree squirrel lineage, but appear to be about as distinct as the flying squirrels; hence, they are sometimes considered a distinct tribe, Tamiasciurini.

3. Abert's squirrel or the tassel-eared squirrel (Sciurus Aberti) is a tree squirrel in the genus Sciurus native to the southern Rocky Mountains from the United States to the northern Sierra Madre Occidental of Mexico, with concentrations found in Arizona, New Mexico, and southwestern Colorado.It is closely associated with, and largely confined to, mature ponderosa pine forests.