This Warbler is not a bird of the forest and is seldom seen in timbered areas. Its favorite haunts are among the smaller growth of trees on wooded hillsides covering slopes leading from the canyons and the boulderstrewn ridges which separate the heads of creeks. The trees which compose this growth are chiefly juniper, mountain, black and live oak on the higher ground and oak thickets on lower flats among the foothills, interspersed in some localities with dwarf walnut, pecan and hackberry. All these trees average from ten to twenty feet in height. The junipers appear to possess some peculiar attraction for these birds for they are seldom found at any great distance from them. It is quite probable that future observations will show that some favorite insect food is found only among these trees. (Attwater)
Very local from Central Texas south.