♦ ' 
(1954) 
AERIAL BEHAVIOR. 
General. May 8, II; May 9, III. 
2, Alarm . Note: May 8, II. Posture: May 8, II. 
3, Landing Call . May 18, III, IV, V. 
« 
4. Long Call Note. Note: May 8. II, III; June 9, I, II. Posture: May 
8, ii. " - . -y.. c •••' : '-v: / r ; : ‘ /. 
5. Glide. Call: May 12, I; May 15, II; May 18, IV, V; May 19, II; May 
Posture: May 11, II; May 12, I; May 19, II; May 31, IV. 
6. Plaintive Charge Call in 
8 . 
May 19, I; May 29, IV. 
Charge. Swoop, and Soar. May 18, I, II, III; May 19, 
" May §4 /"I t ; May £FT‘I ;" May 29, IV, V; May 30, I, II, 
IV; June 4, I; June 9, II; June 13, IV. 
I; May 20, VI; 
III; May 31, 
Pursuits. (See also Charge, Swoop, and Soar). May 15, II; May 18, 
■III,' IV; May 19, I; May 20, I, VI. 
Gakkering . June 7, III. 
10. Swoop. Rise* and Hover . May 20, II; May 24, IV; May 25, II, IV; 
May 3l, IV. Alternate Plaintive and Gakkering; June 1, I, II, III, 
IV; June 9, II. With variant of Plaintive: June 9, I. 
11. Series of increasingly aggressive calls . June 9, II. 
12. Fightin g. Postures: May 24 , IV. 
I 
