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Ring-bill  April 12, 1955

V

much less harsh & explosive.  Each note tends to be more long-drawn, softer, more mournful 3:10

[[circle]] U.U.U. U-HD-OT-U before attack - Bird in U-HD-OT U attacked - U after attack - U-HF after being attacked JD-OT. HD-OT. OT before attack - HD after attack  OT after attack  OT before attack O.O. HD-OT after attack. GP before attack - GP before attack - GP after attack.  GP before attack  M after attack

M.C. [[male symbol]] does O-HD-OT-U-HF-U-T-U. [[female symbol]] does the same thing (in different tempo, TCP after [[male symbol]], T before). Relax. Walk apart. [[male symbol]] files off, doesn't return - for some time at least.

I think that the landing Call must be relatively high average intensity in this species.  Explain its rarity in general, its great rarity or complete absence during M.C's, and (perhaps) its choking-type rhythm.

Haven't seen much in the way of real "sexual" behavior today.  Have seen [[female symbol]] T close to [[male symbol]],  while he M, and a dead fish at their feet.  That is all.  No Regurgitation, no actual FB.

Leaving 3:48 pm.

Wednesday,
April 13

Oxbow Lake near dump. 12:15 p.m.  Clear.  Cool.  Sunny.  Mod. wind.  Very few gulls of any sort

U. HD. U. HD-OT M-U. OT T. U. U. U. U.

[HD. HD-OT.

Gull landing with typical HD Long Call 12:25.