MUTATION, FERTILITY, AND LONGEVITY IN INBHEI, JAPAN, M ', I ,: , I.K-DOVEB. 49 

 cf 35. T. orientalis; 8/13/04; 10/1/14; 10+ yr 





Th(> ; !i < " iX -- ii ....... wiiwtatoM.aa ,.i. ,,,,..., 



d" 06. 7 1 . orientalis; 6/6/06; alive 7/?/07; 1+ yr. 



' 

 d 1 69. r. orienlalis; 7/17/06; alive 9/1/14; 8+ yr. 



During 1909 and 1910 this inal,. ,,K,t,.,| will, hi, mother and pmfaued wl,i.e,,.,| "mutant" offm 

 shown ,n table 19. Until October 17, 1911 this bird WU wi,l, a female St. //,. ,, ,,, ,,,,, Jj T ,V3 

 and produced a few eggs, the fcrnhty of which is ,,,,! known. After the above date , u,,|, 

 X alba hybrid 27); no eggs during II,,. autumn. TheM bird* produced during 1912. 04 r KK , 

 tested for fertihty and all proved absolutely inf,r,i!,; ,h,s, hybrids and th,-ir r, 



M %a ^ 6 ', 19 ' 3 ' 23 *"* """ '"'"'"''' i : ""<" '<-"<' fr f'Ttilitv. From May 10 toSepte, ,1,-r 



' """"I ttMm "' ">' "'"'"" ..... ""TftoS 



T """"" "*'> - ...... ' ........ - + ..... -* 



c? 76. T. orienlalis; 3/17/07; stolen 8/12/12; 5+ yr. 



In 1909 this bird was fully fertile (I! eggs) with an OriMoUl (:1S) ,,f uncertain a,, ..... try; it, l!ll(l when maUd 

 to his immature niece (88), he was probably fully fertile (table JO), but the young were sl,,,n-liv.,| Dnda 



11 this more mature nmtniK was fully fertile (L'li younts), and the ulTspnni; lived ., ,|,,| 



those from the previous matings. It is upon this family (of 1(11 1 i thai ,-hapter ti is I, , 

 1912 this male was without opportunity to mate until June 1L>; then with f. 

 stolen August 12, 1912. 



f 



CONDENSED FERTILITY RECORD OF INBRED OpFsi-niNd OF FEMALE T. ORIENTAL No. 2. Wins (i,.,, 



MATED TO A SON, No. till. 



9 99. T. orientalis; 6/4/10; alive 10/1/14; 4+ yr. 



Mated with her brother (105), this female produced 2 eggs about May L>(). 1(111. July J. Kill, -he wu 

 given a female alba X orienlalis hyb. (27), with whom a mating possibly ,,r,'urivd: hut No. m pmlubly laid 

 no eggs. On September 17 she was put in a cage with !_' miniated birds -malr ,s'(. nil.: 



orientalis (2); no result. On April 24, 1912. put with a male ,SV. allta (lii-'i an. I was then fully fertile, a* i* 

 shown in table 23; later she largely lost fertility, as shown in table 21. K. |.i i >, t..l. r 21, K>; 

 191&, with a brother (No. 105) without results. 



d 1 105. T. orienlalis; 7/25/10; alive 10/1/14; 4+ yr. 



In 1911 this male till July 2 with his sister (<((). A clutch was produced by the pair; t heae crushed, probably 

 fertile. After July 2 with female alba X orifiitiili* hyb. (27): failed In mate. Ma 

 with a. St. alba (died October 9, 1912) without result. September :i to ( Ic-tc.lx-r 11 with female St. 

 December 9, 1912) without result; after October II. l!12, will, male T. ..r/. nlali* ill'.'. !>:. 

 April 30) and 1914 mated with female SI. nlln (S17); this pair in I'.li:! pr...lu.-e,| infertile .'Kits (fern:,!,- was 

 rather young) ; in 1914, many infertile and some fully fertile cues, as shown in I able L'.V lv |.i i >.!.. I -r 21. I'll I 

 to March 20, 1915, with sister (99) without result. 



d 1 108. T. orientalis ("mutant"); 9/7/10; 3/18/13; 2 yr. 6mo. , 



This male put May 23, 1911 with a one year old male T. orientalis (101). The Bex of neither waa known; 



they remained together without mating behavior; but the "mutant" was ' !. .1 as "in the ,.- 



From August 3 to October 13 male ,SV. nllui (2(1) was given. On March 22. IU12: this in 



T. orienlalis 433, which had laid one or two eltitrl : a mating was rffceted at nncr. The intrmtinc 



result of this mating is given in table 20. The.se birds were kepi together during the winter of KM 2 1.1 without 

 eggs; though the failure was probably the fault of the female, which was insufficiently provided with f. athen. 

 particularly flight feathers. The male, always a very quiet bird, was thought, till found dead, to lie healthy 

 (though too light = 218 g. instead of 2-1(1 to 2.VI on February Is. I'.MU). The autopsy faili'd to reveal the calm 

 of death; the testes were remarkably small. 



9 109. T. orientalis; 9/9/10; 9/3/12; 2; NT. 



On July 2, 1911 a female alba X orientalis hyb. (10) was given ; this latter female laid a clutch of ens. and 

 developed (in ovary) another clutch before removal on August I. but C llf.l laid r -Mowed no signs 



of mating. On August 4 a male St. ullm (22M was given with no result. From early KM2 to .lum- 2 with male 

 St. alba (459) with no result. From June 2 till dead on September 3 with a female SI. ,: 



bird (dead December 9, 1912) laid 10 eggs during this time all. of course, infertile; 9 Khl laid none. It was 

 not thought, till autopsy, that this bird was a female. In view of the al>ve record of two different female* 

 having laid eggs when confined with this bird.it seems not improbable that an actual mating occurred in each 

 instance; but this weak female was perhaps "unable to produce eggs" under this derive or kind of stimulus: 

 perhaps this history raises a quest inn a< I" her i duce eggs at all. 



