X ILLUSTRATIONS 



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33. Figs. 1-G, Neck-fcatliers of the Nicobar pisoon, Calanns nicohnrica. 

 Figs. 7-10, Neck-feathers of the guinca-innion, ('ulititiliti i/iiinca. 



Figs. 11-14, Neck-feathers of a C. gum. n ■ ( . /,/,.) Ii\lir]il 212 



34. Figs. 1-3, Neck-mark of adult male risnna-:imaUi,:<is-,dU„ hybrid, No. T 1. 



Figs. 4-6, Neck-mark of adult male risunu-allm x suialcnsiii hybrid. No. F 212 



35. A, Neck-mark of adult male Columha leucocephala. 



B, Adult C. domestica X T. nrientalis hybrid 218 



36. Neck-marks of common turtle-dove of Europe, Turlur iurtur 220 



37. A, Adult male alba-risoria x turlur hybrid, No. J 1. 



B, Adult male alba-risoria X lurlur hybrid. No. A 1 224 



3S. A, Neck-mark of adult female complex alba-risoria X lurlur hybrid, No. D9. 



B, Neck-mark of adult female complex alba-risiuiu-hirlur hybrid, No. K 1. 



C, Neck-mark of Juvenal male complex alha-ns<.nii-luiiur h\ brid, No. II 2 224 



39. Figs. 1-4, Neck-marks of three complex alha-nsnnd-lurlur hyl)rids, Nos. I, E 1, and E 2 224 



TEXT FIGURES. 



PAGE 



1. Adiili III il ■ ;,ii<l fi iiiilcSVnv-/.'/"'''" """' '•: Turhtr nrl, iitalis hybrids 70 



2. Nr.l ■ ■'■ l.iiili.il nn..;Hl,,v,- liNbii,!. X,,. Kl 211 



3. Hc.hI III.: ' . |ii\cii:il Afn.-aii uu l-|.inc(,n, Cihimha lurbata, 3 months old 211 



4. Head :..i.l li. . ;. ui .alult feniule stuck-Juv.', C. ana.i 213 



5. Head and neck of band-tailed pigeon, C. fasciata 214 



6. Head and neck of wood-pigeon, C. palumbus 215 



7. Head and neck of guinea-pigeon, C. guinea 216 



8. Head and neck of adult fenjal. i ,;,„-,, ( i ,,,- In I, ml, X,,. C 217 



9. Figs. 1, 2, Neck-mark of thrcr-i Hii i|, m r .i.> . ., ml, mil h /(imjh's hybrid. No. K. 



Figs. 3, 4, Neck-mark of .S/. /,. / .>. :, , In i>l X... 1 218 



10, Neck-mark of adult Chinese lin ilr-,l,,\ ,., ,X/, ,/../"/,„ ,/,,«< „.s,.s 219 



11. Neck-mark of adult male alba-nsona lurlur h\l)rid, No, J 1 221 



