C. Koford Journal Chih., Mexico. 18 27 June 1969 Sierra Cañón del Nido, Arroyo del Nido, a part, about 7000'; saw 5+ Stellar Jays including two short-tailed jays. Horse flies bothersome even here. At 11:15, arrived where two 20' bladders form an arc over strambed; still no water. Found pe lean droppin or sign in area. Started back 12:15. Clear; four breeze; very hot. Over strambed, a 4 Summa Tanager, alone. / A silvery-leafed oak, 70' slow strambled, white-sand Hummer, Chihuahu) Vireo (eye ring; yellowish belly). At yucca flower, a hum- er fed (tips outer tail feathers white). / Back to ranch house for water, & looked in old mine tunnel for bats (bats droppings but no bats). Horse below tunnel (supplied from main houses), had bat droppings in a few spots (night roosts). On porch of other house, exposed on bare slope, clust 35 nests of Cliff Swallow, at least 12 having fledglings; also at least 4 nests of barn swallows, at least 1 with 2 nestlings, 1 with 4 eggs. (One of these in a room, w. broken window. At ranch house where people living down on slope, saw other nests Barn Swallow or Swifts whose young emerge from adobe & roof; at least 1/2 with 2 nestlings, another with 2 fledglings perched alongside. / We moved camp to 1.8 mi. from house, up Cañón del Nido (near Keyhole Rock). There saw White-sand Hummer feeding in oak, & Cassin's Kingbird. Near camp saw 2 Harlequin Quail. Or called water trunk trunk, while on ground. 28 June 1969 Cañón del Nido, Sierra del Nido, Chihuahua Departed 06:40, clear, for Sierra crest via Tres Vistas, setting altitude at 6500' at start. Heard Harlequin Quail (1+2) flush from short green slope away shrubby oak. Saw White-sand Hummingbird in oak by trail. 6500' (indicated alt.), an occasional woodpecker, exposed, in canyon bottom.