82 INHERITANCE, FERTILITY, AND SEX IN PIGEONS. 



Table 50. 



Pair 5. 

 cf St. risoria (32) (light) ; age unknown. 

 9 alba X orient. (12) (white); 8/27/07; alive 10/1/14; 7+ yr. 



A 1. 7/l/10kj,g hatched; white (R-AO 1) ; disappeared between 7/1/11 and 11/4/13. No record of other egg. 

 A 2. //3/lOJ 



cT B 1. 8/10; hatched; blond-like; (R-AO 4) ; alive 10/1/14 = d' or cf 9 (acts like a c?, and infertile). 



?B 2. 8/12; hatched; white; (R-AO 5); dead 1/22/11 (no gonad found). 

 9 ?C 1.* 10/24; R-AO 6; white-shaded; bulging occiput; dead (cold) 11/8/10. 

 C 2. 10/26: developed, but unhatched. 



9 St. alba X orient. (9) ; (white) ; 7/14/07; alive 8/1/14; 7-|- yr. 

 ?A. 7/30/10; R-AO 2; light blond; dead 8/2C/10. 



"I noticed Aug. 23 that this bird (R-AO 2) had an excessively large occiput; this part of head bulging 

 as if swollen. Aug. 25, I found the bird with a twisted neck, held so that the top of the head rested on bed 

 of nest, the beak pointing upward. The bird could not right itself and apparently had failed to get any 

 food. I held its beak to the mouth of the male parent until it was fairly well fed. I doubt if the bird 

 recovers its normal condition. Aug. 26 found this bird dead in the nest, the male parent standing over it, 

 as if waiting to feed it. Death probably due to something going wrong in development; the twisted neck 

 was a sign of this. Sex = ?9. (Could find no organs for certain)." (F 5) 



nknovvr 



9 alba X orient. (17); white; 4/17/08; killed 10/2/13; 5H yr. 

 A. 8/7/10; R-AO 3; blond; disappeared 7/1/11-11/4/13; " Upper mandible 1 mm. too short; later became right.' 

 ' "Could not be sure of an ovary here." 



Table 51. 

 Pair 6. 

 cf T. orientalis (0) ; imp. from Japan between 1903 and 1905. 

 9 risoria X orient, hyb. (2); 5/3/04; 1/13/09. 

 A 1. 4/23/06; pricked shell, deserted, dead without hatching. 

 A 2. 4/25/06; no development. 

 '!<fB 1. 5/5; hatched; no plain sex-organs; bulging occiput; i dead 10/27/09. 

 B 2. 5/7; probably no development. 



C 1. 6/10; no development. D 1. 6/23; not well tested. 



C 2. 6/12; no development. D 2. 6/25; not well tested. 



TH „' -/,, ?one developed part way, failed; other no development. 

 b, 2. i/llj 



(f (0) removed 7/28/06. 



Pair 7. 

 e f T. orientalis (66); 6/6/06; given 4/10/07 

 9 risoria X orient, hyb. (2) ; same as above.' 



\ 1. 4/29/07; probably no development. 

 A 2. 5/1/07; probably no development. 



D 1. 7/?; some development. 



D 2. 7/?; no development. (F 14) 



' "This bird has no plain sexual organs — just a trace (perhaps) of one testicle. It had behaved as a very pugnacious 

 male trying hard to win a mate. Mated with a ring but no result, except he played his part perfectly in sitting, etc. ; color 

 intermediate, nearer T. orient, than orient, x risoria or risoria X orient, hybrids. It seemed a well-formed bird except that the 

 head was noticeably enlarged at the occiput." 



^ Had laid eggs before mating with male 66. **^ 



