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[[underline]] inca [[/underline]], Nov. 14, 1955, XII [[circle]] 87 [[/circle]] Early pairing behavior much parading in V by both (clearly retreat in aux. V, advance in agg V), then [[image - male symbol]] begins [[image - horizontal oval]] [[underline]] attacks [[image - female symbol]] from [[image - horizontal oval]] [[/underline]]. (Of course, he had to come out of the [[image - horizontal oval]] posture in order to deliver the attack - but this was very rapid, as attack was in progress) Then both Agg. V., (out with trace of G). They mutual [[image - vertical oval]]-[[image - horizontal oval]] performance and temporary relaxation 5:50 * terr. defense [[underline]] Ft after escape. Ft between attacks - Agg V + G between attacks [[/underline]]. Gost. O + G - O + G - O + G - Agg V (followed by Motti Flight with Ft) Gost. Gost. The 2 commonest [[image - horizontal oval]] postures seem to be the long-necked one rather reminiscent of an L [[image - sketch of bird with longer neck and head down]], and the shorter necked one, like Gost with bill all the way to the ground. [[image - sketch of bird with short neck and head down]] I really don't know what the difference between then is - except that in some cases it appears to be a matter of room available. I have [[underline]] never [[/underline]] seen cht with bill wide open. It is always moving rapidly, between half open [[image - bill half open]] or [[image - bill more open]] (at most) and closed or (perhaps more likely) almost- closed. This rapid opening + closing movement is apparently correlated with rhythm of call itself. The faster the call the faster the movement. Leaving 6:17 Tuesday, Nov. 15, 1955 Chincha Peru 7:40 Large colony again, but moved blind birds panicked