85 15 mi. NNW Tacámbaro, 9000 ft. June 16 bird I was holding. Evident either the calls were given by all birds. I could detect no difference in those of the juveniles as compared to those of adults. A flock of young Cyanocitta Stelleri came to my squeaks and those of the wrens as I hunted, crowding down beneath a broad crowned tree. I then walked up the slope and collected a Troglodytes brunneicollis is a cut over area near fallen trees. This seems preferred habitat of this species -- i.e. several fallen logs and secondary growth of trees shrubs. This bird is much lighter in color than those from the Valle de Toluca -- call notes -- nasal cheeze -- are identical, however. Heard Pipilo calling and saw black-headed grosbeak {common}, Atlapetes pileatus (one collected), and several other Steller jays. Oriolus is present here also, especially in the oaks {few, scattered} madrones near the tent. About 1 hour after collecting the first group I found another loose-knit group on a neighboring slope -- feeding in huge pines and fis & as oak. Saw one bird work along horizontal branch of a more-conical oak, then hang upside down and forage for at least 30 seconds. Foraging occurs at all levels -- even down to smaller trees a shrubs; but mostly the birds are high in the trees (up 100 feet or so). This group was silent except for an occasional short period