Very common before attack, for instance (M. April 9, 2; M. 
April 11, 6; M. April 13, 20). Choking following actual 
attack (M. April 12, 3-4). Aggressive, between partners ? (M. 
April 9, 5; M. April 11, 2). Choking by gull, on first alighting 
with mate. Followed, by repeated. Swooping, certainly aggressive 
(M. April 11, 6). At flying bird. (M. April 13, 17). Choking in 
response to neighbors 1 display (M. April 13,15-26). Stops 
immediately when opponent (?) flies away (M. April 11, 1). 
Choking by a female when a male approaches and tries to 
mount her (M. April 13, 2). 
H ead bent away from opponent (M. April 9, 4). 
Much pecking at ground (M. April 9, 4). 
Choking on water (Mike's notes). 
Reaction to other species of gulls , 
not attacked while preening on tide water 
molested when it flew Tip (M, April 12, 2 
An adult Common Gull was 
but was immediately 
Female FB, and feeding of the female by the male . These 
behavior patterns have been common ail, week. inhere is no need for 
particular references, unless behavior contains unusual points of 
inters t. 
Female food-begging, when quite alone (M. April 11, 2: M. 
April 12, 6). With H B. 
In general, the female begins begging in a serai E posture, 
with some HB. Usually gets more submissive later on. Why? 
Possibly increasing sex drive? Or just due to the fact that the 
male puts his head down to regurgitate? 
Female begs immediately when the male picks something up and 
eats it (M. April 13, 12). 
Decription of the male feeding call (M. April 12, 5). Male 
with tail unusually high (still not as high as during typical 
Choking) (M. April 13, 16). Male bends head down, kroons, regurges, 
after female has flown off (M. April 11, 7). 
Juvenal food-begs and displacement nest-builds (R. April 10, 3). 
Aggression by male during FB (M. April 9, 1-3-5: M. April 13, 
6-17). * 
Aggression by female after being fed (M. April 13. 22). 
Female makes U and FB alternately (R. April 10, 2;. 
FB by female ,when male disputes with neighbors (M. April 12 
M. April 13, 13-22), 
Pecking at ground during FB (M. April 13, 8-17). 
Mutual FB. and male FB alone . Very common • For instance, 
(M. April 9, 2; 3." April 13, 20-22-23; R. April 8, 3-4). 
Mutual FB during boundary dispute (M. April 13, 27). 
Copulation . Successful copulations . Male with HB (M. 
April 9, 4; 5TT April 13, 24; R. April 8, 1-6-5). Male without 
HB (R. April 7, 1; R. April 11,2) 
