K.Selander, 1952 Colaptes calus August 13 15mi. N Cuernavaca, 8900ft., Morelos, Mexico - flushed two along edge of oak stand. They were on the ground in waving grass. One flew about 25 yds and lit on the ground; the other flew into the oaks and out of sight. One gave familiar flicker call, not noticeably different from that given by some species in northern Utah. There were only two individuals noted. August 16 lengua de Vaca, 9500ft., Mexico, Mexico. Heard calls in pine-pine forest and sighted one individual clinging to trunk of fir tree. Calls sound higher in pitch than those of C.C. collaris. Behavior similar, however; very wary, skulking just out of shotgun range.