LL Wolf 1963 Chlorostilbon caucensis August 7 Qui E Cuernavaca, Morelos. Año de Lobos. Saw 2 ⚠♀ and 2 ⚠♁ Singly. Found ⚠ about 1/2 completed building not about 15 feet from edge of stream three bottom of canyon. Nest above little mud trail ~30 inches. Shrub + tree canopy probably provide continuous shade. Nest at end of slightly drooping branch of nearby shrub. Placed on branch & supported in part by leaves at terminuses. Cup appeared about 1/2 completed. Outer layer coarse inner bark, then finer material. Pieces of bark pasted on outside. Looked like no lining yet. ⚠ collected material both from ground + treetop of 30 foot tree. Both within 50 feet of nest. Her approach to nest was from above dropping onto nest. Twice she settled onto nest & apparently put material on outside, threw threw motions like bird-wiping on side of nest. Saw no ⚠ in vicinity. When I inspected nest she flew up 1 equal tail + chattering to within 4 feet. Then left area for 10+ minutes.