53 LL Wolf 1964 Journal August 3 Cuernavaca, Morelos, Mexico Spent until 11/5 trying to watch Rusty Sparrows. Most seem To have finished breeding, but are still in pairs of adults. Saw one 3/4-fledgling juvenile + Dick saw at least 2 young in family group. 0800 Still sing sporadically, but not for extended periods. Birds here seem to be much the same as in the low arid parts of the Cañon de Lobos - except that Rusty Sparrows are much more common. Dick found nests with young of Orange-Gilled Nightingale Thrush + Chipping Sparrow. I saw one grown just Chipping Sparrows. Back to Cuernavaca where went to market for food. Then home to shin birds for afternoon. Wrote notes after supper + to bed. Was clear to partly cloudy in early morning becoming progressively more cloudy. Rained for short time at 1600 + then sun came back out. Rained again at 2000. August 4 Cuernavaca, Morelos, Mexico Up at 0500. After breakfast drove out 5 miles E of town on road to Tepoztlan. I spent early part of morning trying to record vocalizations of Rusty Sparrows. Managed to get several squeal sequences + some songs. Playback of squeal brought immediate approach response followed by squeal. Also recorded calls of Phylloscops cinereus. Then spent 1/2-hour looking for watching Rusty Sparrows. Found excitedly Chipping Melospiza kiewi + located nest containing 2 half-grown young. Spent until 1115 watching nest + adults + a family of at least 3 Rusty Sparrows - 2 adults + 1 full-grown young. Watched an Amazilia violiceps chase away other individuals from area of flowers