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May 18 II

T Call is higher pitched than OL or even O notes
[[image 1]]
Rendering of OL-T or
[[image 2]]

OL-T O OL-T-T OL. O. OL. O. OL-T.

Bird doing charge - Swoop - Soar pattern, all by itself, far off in distance, over water.

Bird flies up in distance. Chases another, with charge, Soar. Continues chase. Swerves off. Charge - soar by itself. Flies off. Lands again in distance. 4:18.

Most birds fly up as plane goes overhead. Notice that [[?]] immediately occupy some of the muskrat houses on which gulls have been sitting.

Single bird. Call it B. Has been standing near hide. Giving GC to every passing bird. No response. Unmated male?

Now seems to be back, in water near old stand 4:22

Flies off. Back, on ground. Off again. 4:28

Have noticed several times that a male, when female begins real FB, may fly away, or make little circular flights, either before or after regurgitation. 4:42

Male showing no sign of T, even when being FB'd at vigorously and repeatedly by a female.

Copulation attempt, apparently successful Didn't catch the immediate preliminaries, but the male had fed the female  about a minute previously. Copulation itself looks much like that of the Bh.G. Same movements, including male {{puhing?]] down at female. His bill is wide

Transcription Notes:
[[image 1: sketch of call pattern]] [[image 2: sketch of Redering of OL-T]]