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May 19 II Glide Call Often "mothered" at the end Tail is not widely spread during ordinary gliding [[2 sketches]] Watching dump lake for a while 8:50. Few birds also a few birds on ground 1 1 2 1 O.T, OL, O.T. This isn't worth it 9:00. 3 4 5 7 2 O.O.O.O.O.T. O before attack O.O.O 6 10 3 7 4 11 9 O.L. O.T.T.O. OL. T. T after attacks. OL.O.T.T. 3 5 10 12 6 11 23 12 U.U. OL.T. O.T.OL.T. O.O.O.O.O.O.O.O.O.O.OT. O before 26 16 attack. D after attack T before attack O.O.O.T.T.T.T Leaving 9:40. OL:OL.OL. T.T.T.O. [[U?]]. Thursday May 20 1:50 a.m. Small Colony. Hot. Humid. Airless. Gulls probably not quite so shy. One C bird doesn't even get off nest. OL-V, OL, OL, OL, [[scribbles under previous letters]] Charge & Swoop & Soar, during Pursuit, in which "Kn-Kn-Kn..." Call developed, from Charge Call, at climax of swoop. OL.-V-O-V-O-V. O.O.O.O. OL.O.O.O. OL.O OL.O.OL.O OL. OL. OL-T. OL.-V [[scribbles under previous letters]]