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[[underlined]]Cyanerpes[[/underlined]], May 3, 1961, II. 92

songs the ♂ uttered last year when alone. Also uttered from unritualized sitting posture.

Yesterday morning, I put the ♂ back with the ♀, around 7:15 a.m.

Both birds flew around excitedly for a few minutes, landing from time to time, but seldom very close to one another. One or both birds uttered quite a lot of the usual hard "CN"'s of the species. (Such "CN"s might be transcribed as "Tsit," or even "Tuck." I am beginning to think that they may be definitely hostile —see below.) I think that the ♀ uttered more of these "CN"s than the ♀.

Both birds also uttered a few R's, within a few seconds after the ♂ was introduced. Some (probably) in flight. Others when perched. The ♂ uttered one R (at least) in a conventional, fairly high St. With little or no BL or BF. And no trace of Q. The ♀ uttered at least one R in an St. Posture like the one drawn on Feb. 24, 1958, p. 52.

When the ♀ began to utter thin, high, "Tseeet" Notes. Essentially single, but repeated quite frequently. These were probably the same as the "Treeeeet"  Notes of the ♂ described above on Jan. 23, 1960, p. 83; although the ♀ probably did not repeat them as rapidly as did the ♂ last year. The ♀ sat in apparently unritualized perching and/or "pre-locomotory" postures while she uttered these "Tseeet" Notes. She also flew about from perch to perch, a little bit, after she began to utter "Tseeet"s ; but I [[underlined]]think[[/underlined]] that she never actually uttered any "Treeet"s in flight.
I think that these "Tseeet"  Notes (and the "Tseeeeet"s of the ♂) are probably strictly homologous with the SN's of the Plain-colored, Palm, & Blue Tanagers, the PCN's of the Sangre de Toro, and re