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Ring-bill

April 13, 1955

II

Leaving 12:30
Back 1:23 Even fewer gulls 
Back 3:40. Gulls starting to return.

U1 -HD1 -OT1

Peculiar "Landing Call" of this species given with closed or almost closed bill.

Leaving 4:10. Gulls asleep.

April 17, 1955

12:25 p.m. Portage Creek Cold Cloudy windy.

M.C. ♀ gives Landing Call as she lands, no ♂ call. Then ♂ does U-HF-U-attacks ♀ U-attacks ♀ -U. ♀ does U-HF-U-retreat-U-retreat-flies off-lands beside another ♂

U before attack - U after attack o. u. u. u. before escape. u. u. u before attack - and in P attached  HDTT. HDTT. TT. U. U. U. U before escape

[HDT. U. U.]

U after attack

♂, food in mouth, approaches ♀ with L posture, calls intermediate between M and LC.

Leaving 12:45.