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Ring-bill May 10, 1955.  VII

Not sure I can tell M and PCC notes apart, although I am sure that they are actually distinct.

PCC is louder, certainly. Monosyllabic or Bisyllabic. "Waaaaaah....." or "ooooooah" or "eeeeeeeeeeeye" Sometimes much higher in pitch than at other times. When bisyllabic, tends to rise in pitch on second syllable: [[image 1]]. Most typical, "real" PCC, is monosyllabic, I think.

Cop Call-Glik is "A-a-a-a-a-ah" really, rather than "Ka-ka-ka-ka-ka..."; but probably better transcribed by the latter.

Have seen the high skull LCN again and again as reaction to Herring Gull 6:25

Skull LCN toward Herring Gull is definitely "anxious". One sitting Ring-bill has been screaming it steadily for five minutes.  Occasionally note becomes broken up, almost polysyllabic, and is then exactly intermediate between LCN and AlC. When monosyllabic, this "anxiety" LCN is "Keeeyow." Other gulls beside Herring are giving definite AlC's.

There seems to be a very pronounced tendency for one or more birds engaged in a boundary dispute to sit down. In W. Silent. Neck not bent down as in Choking. It is from this sitting posture that Ch and P develop. (W is not always pronounced, incidentally).

7:45

Some of the Ring-bill's occasionally swoop at Herring Gulls on the ground (eating eggs). At the climax of the attack, they utter an Attack Call very similar to that of the BhG. "Kack-ack-ack-ack" [[image 2]]  Very harsh and staccato

Have seen a good deal of P with R. It is obvious, I think, that R can be superimposed upon all or most of the hostile postures

Transcription Notes:
[[image 1: two horizontal lines, rising at the right end, representing gull calls]] [[image 2: drawing of four horizontal lines, representing the pitch of the attack call.]] [[blue lines and hashes run down left margin]]