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Ring-bill 

April 23, 
1955

6:20 a.m. Delta Marsh. Clear. Cool  Moderate wind  Gulls on ice. Have been very noisy all night

[[circled]] 6 [[/circled]] [[checkmark]] U between attacks - [[2 checkmarks]] U-HF after attack - HF1 [[checkmark]] U after attack - [[checkmark]] U before attack - [[checkmark]] U after attack - [[checkmark]] U before attack - [[checkmark]] U after attack.  O1-M1-U1-M2-U2 U3 U4. OLTT OLTT LTT LTT. LTT. TT LTT. LTT.LTT.LTT.LTT LTT. OLTT. OLTT. TT. TT TT. TT U. U. U. U U U. U U. LTT LTT.  U before attack - bird in U attacked - TT after attack  U before attack - TT after attack T. T. T. T. T. T. T. T. LTT. LTT. LTT. LTT. U. U. M  U before attack U during retreat. PAG PAG. U before attack - U after attack - U before attack - U after attack - U before attack U. U LTT-T. O. U. LTT. U after attack -HF- U before attack - U after attack U after attack - U before attack - U after attack - U after being attacked  LTT. LTT.

7:02 

[[circle]] U after attack TT. TT. U before attack - U after attack  U-P before attack - U between attacks - U-HF after attack.  U. U. U. U.  U before attack - U after attack - U after being attacked  lTT. U. U. U. U O. O.  U before attack - U after attack - bird in O attacked - U after being attacked OLTT. LTT. LTT. TT. U. U. U

Leaving 7:30. Frozen.

Lots of pairing behavior this morning.  Not pair-formation; but much of it relatively early.

Usual Aerial "flitting" type. [[male symbol]] on ground, joined by [[female symbol]], one or both fly off, land in same spot or new one, fly up again, etc., etc., Just like Little Gulls in fact.

M.C. of U-HF-U-relaxation  With and without PAG, Cpr, redirection attacks (by [[male symbol]]) Sometimes preceded by mutual TCP, more or less complete

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