The OLIVE WARBLER is said to resemble the Pine Warbler in its slow, rather deliberate, habits. Chapman found it very abundant among the pines at Las Vigas in the State of Vera Cruz, Mexico, at an altitude of eight thousand feet, in company with young of the year, feeding leisurely among the branches, some occasionally desending to the ground for food. Stephens found it not uncommon in the Ghiricahua Mountains, and Henshaw secured three specimens on Mount Graham, Arizona, in September, 1874. It is apparently a rare bird in the United States.
White and Huachuca Mountains of Arizona and in mountains of southern New Mexico.