are presumably sexual. The general tilt of the body, the occasional 
foot movements, and the occasional sitting down, seem to come 
from nes't-building. Raised wing purely aggressive. 
Differs from "friendly" Choking in some ways? Food is never 
actually brought up? We have not yet seen the cloaca opening and 
shutting during "friendly" Choking, but this is probably coincidence. 
Is "aggressive" Choking more intense than "friendly" Choking? 
"Aggressive" Choking occurs in cases of high intensity Sfcxkxxgx 
conflict? Boundary disputes. Conflict of which drives? Attack 
and escape? What part does the sex drive proper play in it? 
Are we justified in; rigidly separating "friendly" from "aggressive" 
Choking; one as autochthonous and the other as displacement? 
"Grass -nulling"? In "aggressive" Choking we have^often seen males 
Deck at leaves and twigs,, sometimes picking them up. Pecking often 
vigorous, twigs often shaken violently. Looks vicious. 
References . 
Forward. Pair, using F against opponents, often re-orientate 
to fal e ea5 h other (m. Mar 17, 11-14). Hasty discussion of F 
(M. Mar 23, 9). 
Erect. Bill pointing strongly downward is more aggressive 
than bill~horizontal (M. Mar 19, 7). 
Head-flagging. Done against opponents , or, atleast, against 
neig hboring ma?es (M. Mar 17, 4). Always away from "partner , 
changing as latter moves (M. Mar 17, 5-6;. 
Anxiety posture . Erect, with thin neck.(M. Mar 17, 13). 
"A^ressive Choking". Drawing (M. Mar_17, 8). Examples ^ 
, „ ,,- /?■ w — Q-: — f — Mar "20 3 to 23; M. Mar 21; R. Mar 20, 6-7-8-9- 
11-12) Pecking at leaves and twigs during Choking (M. Mar 20 and ^1) 
Choking when felale leaves suddenly ( is this aggressive?) (M. 
Mar. 21, 4). Description, with high tail (M. Mar 21, 7). 
— "hp && inf Female FB with different males (R. Mar 18, 8). 
Food-oegging. x emeu-c-tx. Females often fed 
Definite ?B onwater, first seen IK. Mar 
by males from Mar 20 onwards. 
