77 1 Km. W Puerto Garnica June 10 call would be expanded into loud long she-dit she-she-dit calls given by several birds of a group. Saw no chasing of pairs today. Saw a nest in a small, strongly fir, - about 25 feet up on a nearly horizontal limb. Nest was along a very lanky. Activities of a group was centered around this area & I saw one bird visit the nest for a few moments. The nest was at the edge of an open area. Birds feed along branches and especially on our clumps of pine needles - often being repulsed down for a moment. From detail no difference in feeding methods between this species and zonotus. The calls are probably not so similar to [megalo]opterus given as I at first thought but the differences are difficult to record. The [che-che-] call of zonotus is used only very infrequently - but the stage of breeding season is not comparable. Megalopterus is much less uniformous but, again, the season is not comparable. - In any event I doubt that differences in call, songs (if any?) would be barrier to interbreeding - they are that much alike. Che-che-che she-dit - common call. Other birds noted: Chickadee, brown creepers, Pipilo, crowns, Steller jay, red warbler, ant-eating woodpecker, Paranga flava, Atlapetes pileatus, large woodhewer (called), Catharus sp., Turdus migratorius? x