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FRANKLIN 1 3 GULL. (1954). 33T 
PAIRING AND SEXUAL BEHAVIOR. 
1. Competition for stations . June 1, II. 
2. Changing of territories . Comment: May 30, III. 
3. “Ground Ceremony" . Individual variation: May £0, V. Playing with 
nest-material after the Ground Ceremony: June 5, II. Possibly by 
a female with territory: June 4, V. 
J 4. "Mutual Ceremony". General comment: May 11, I: May 12, I; May 18. 
III/T; THay "So, VI, VII, VIII. Examples: May 15, I; May 18, III, 
IV, V; May 20, II. Circular parade: May 31, III. Female going 
from male to male: June 1, I; June 5, III. Female attacks male: 
June 3, V. Third birds visiting or intruding: May 24, I. 
5. Circular Flights . May 13, I; May 18, II, III; May 20, VII; May 25, 
IV ; May 36,1; May 31, III. 
/ 6. Redirection during Mutual Ceremony . May 13, I; May 24, II. 
»/ 7 • Regurgitation and feeding . May 15, I. Male feeding Call, possible 
examples: May Is, I; May 20 , II. 
l/8. Redirection during Food-begging. Comment: May 15, II 
May £6, II. 
Example : 
9. Copulation Attempts . Drawing: June 3, I. Apparently successful: 
May 18, II; May 19, I; May 24, II; May 26, II; May 29, II; May 31; 
III; June 3, I, III, VI; June 5, II, IV. Apparently unsuccessful: 
May 24, II; May 25, II, IV, V; May 29, II, V; June 3, I; June 4, V; 
June 9. III. After incubation: June 3, 3.5; June 4, V. The 
Copulation Call: June 3, I. Copulation Call relationship to the 
Gakkering Call: May 29, II, V; May 31, III. 
10. Attack by neighbors during sexual activity . May 15, I; May 24, II. 
11* Post-copulatory nest-building . June 3, I, VI. 
12. Pair-formation. General comment: June 26, I. First real sign: 
iky 26, itlt* Particularly good description early stages: 
June 1, III. Later stages: June 1, II. 
13. Differences between the Ground Ceremonies of mated and unmated males 
June 26, 1. 
14. Apparently autochthonous nest- building . June 5, VII; June 7, III; 
June 13, 
