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Franklin's VI

Watched RR give AC. Usual posture. Obviously the scapulars raised.

July 14

*Try experiment with G.S: keep poking it. Great burst of "Long Call" "kaaa's." Head-down. Scapulars sometimes raised. Trace of AC when it fights back. Try to provoke or produce whistle - FB sound as I retreat. Doesn't work. Dies down through weak, brief, "ka" sounds.
  
Fixing YR's damaged wing. Gave high intensity D.C. Sounds just like ALC of typical Larus spp
  
YS, the most aggressive of the gulls, is the only one who frequently gives his "haaa' sounds from a semi-agg-U or semi-O posture.
[[image - sketch of bird's head]]

Try experiment * with YS. Same result, except that the small declining notes were not really rasping. May have been transitional between Rasp & FB note.
  
Try experiment * with RS. "Kaaa"s die down through FB, but can't tell whether this is "real" FB or not.
  
Exactly similar results with RR.
  
In general, naturally, FB cry only appears during unmistakable FB. Still a few doubtful cries, however.
   
Provoke fight between RR and X. X's "kaaaa"s certainly ended in FB cries. What did they mean.
  
GR2 still give occas. "cc". Can't really tell when. Seems sometimes to accompany feeding. Certainly not among the most aggressive patterns.
  
July 15

Watching "whistle" or "kliooo." Especially in X. Series in L, or O->L->O->L....sequence, or even HB. Often alternated with "Kaar"s. Is this the Long Call. If so, is it a refinement of the "kaar" or is it a derivative of the original FB - whistle pattern. Apparently hostile in some cases, e.g. given by X toward Canada Goose.