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(25) Western Cordillera Colombia Mixed Diglossini May 26, 1965 Farallones SEE TODAY'S NOTES ON GENERAL MIXED FLOCKS [[margin]] It would appear that there is mutual inhibition of Song between Cy and Slate-throated Whitestart!!! But Cy [[underlined]] may [[/underlined]] follow Slate-throat in mixed flocks. [[margin]] Albi [[/margin]] I presume that there must be Albis around here somewhere; but they certainly were not singing this afternoon. Albis seem to be among the most silent of Diglossini in the non-breeding season. (They may utter R's more frequently than [[underlined]] carbonaria s.l. [[/underlined]] utter Twitters during the non-breeding season; but [[underlined]] carbonaria s.l. [[/underlined]] utter many R-Zazas, at least when the population is dense. There certainly are hummingbirds around here. But I did not see or hear anything like a Scan this afternoon. This is essentially an area of thick temperate forest, interrupted by pastures; and presumably is too humid for Scans. May 27, 1965 Farallones Going to work around Korea station again this morning. Starting 5:15 a.m. Still very dark. Everything quiet. First presumed Slate-throat song 5:32 a.m. 1 phrase. No diglossini audible at the time. Then general volume bird noises increases appreciably. Difficult to