5 2 mi. N Tierra Blanca May 20 pairs, widely spaced in the vegetation stand - apparently a simple pair set-up as in humilis. May 21 At a point 2 mi. N Tierra Blanca I hunted in a dense stand of trees & bushes similar to that near camp but greener with a few cactus type cacti. The fields surrounding were grassier than those near camp and there was less spiny vegetation. Many of the trees (see photo taken from road-roll 26) are same genera as those around Tonalá, Chis., where we found humilis but the vegetation is more mesic here than near Tonalá. I found one pair of refriuela. I first noted the pair in a small tree ad in a fairly large cactus-type cactus in the midst of the dense trees-bushes. After watching them for several minutes the ♀ flew to a thin-tree nearby where was located in a crotch the base of a nest. I collected both birds. The ♀ had 3 o.l. & a yolk in her ovicent yet the test of the male were rather small. There were no other refriuela present & I shot both birds together after watching them behave in a pair-fashion for several moments. The ♂ is a 1st yr bird, which may account for the small size of the test - but there should be stern in the testis - saves for examination. I could find no nest in the general area, other than what appeared to be the base of a nest in the thin deciduous tree mentioned before. I hunted for about an hour in situations similar