Kerriksen 1950 Journal 16 Oct. 23 5 km. N. Villavieja, 1400 ft., Huila, Colombia, S. A. Everywhere I observed, the monophytic riparian vegetation is in a narrow zone on each side of the stream bed. It runs through the arid thorn scrub—found generally in this region. Stelgidopteryx ruficollis (see species account) and another, larger, all-black swallow (or swift?) were seen frequently working at from 100-400 ft. elevation over the quebrada. Four large, black, wild turkey-like birds were flushed from dense tree growth about midway between camp and the Magdalena River. A black-and-white buteo-like hawk was observed, actively picking something (ticks?) off the side of a resting cow. The hawk was standing on the ground; the cow seemed oblivious to its actions. I approached to within about 20 ft. As over exposed terrain before the hawk noticed me and flew away. (#1439) A large bat was taken from an arboreal termite nest on a limb arching over the quebrada (see Phyllostomus species account.) 5 Museum Specimens (labeled with barbara)