Head-f lagging . With opponent (M. april 5, 5) 
Pecking at ground . Seen during Mutual displays. Common when 
FB i s proceed ing ( M . April 4, 5). Seen immediately after opponent 
flees (M,. April 1, 11). During "boundary disputes, by males, 
Choking int, mov. ? (M. April 5, 3). 
Nest-t>uilding . Very rare this week (M. April 3, 12). Examples 
of picking up sticks (R. Mar 31, 2; R. April 4, 9). 
Toward mate (M. April 6, 4; R. Mar 31, 1). Toward 
flying bird~(M. April 5, 10; R. April 2, 4). By single bird. 
Choking 
on alighting (M. Mar 31, 1). Aggressive, in dispute with neighbors 
(M. April 3, 9). Provoked by FB of neighbors? (M. April 5. 4). 
Provoked by neighboring copulation attempt? (M. April 5, 6). 
Female, who has just been unsuccessfully copulated with. Chokes at 
neighbor (M. April 5, 6). Choking with cloaca opening but without 
krrooning (R. April 4, 1). 
Copulation and preliminaries . Mutual FB (R. April 2, 3; 
r. April 4 , 4 ) . Momentary Mutual FB on water (M. April 4, 2.) 
Mutual FB, the male adopts E, flies off . Sign of aggressiveness? 
(M. April 1, 4). Mutual FB, male quite submissive (M. April 1, 
5-9). Mutual FB, male with HB (M. April 1, 6). Male FB, first 
with H B, then in submissive (M. April 5, 5). Male makes FB cry 
in submissive, nibbles female (M. April 4, 6). 
Unsuccessful copulations. Male FB in submissive before mounting 
the female (M. April 1, 3). Attempt without any preliminary 
HB (M. April 3, 6). Male FB in E without HB (M. April 3, 7-10). 
Male FB with HB, but without neck getting higher (R. April 2, 8). 
Male HB irregularly with call both on upbeat and downbeat (M. 
April 4. 5). Classical attempts; male first in submissive, then HB, 
call on downbeat (M. April 5, 6; *, April 4, 2-9). 
Successful copulations. Classical type (M. April 5, 7). 
Male without HB (R. April 4, 8). 
Female very aggressive after unsuccessful copulation (M# April 
1, 9). 
Female makes a few FB during copulation. 
Feeding and female FB . Very common. Much as during previous 
we e3c 
Similarity between F call and krooning? (M. April 1. 7). 
Peculiar call (R. April 2, 1). Male feeds female without krooning 
(M. April 4, 5). Male kroons before female FB, stops immediately 
on her departure (M. April 3, 5). 
