ILLUSTRATIONS. 



PLATES. 

 Frontispiece, Charles Otis Whitman in 1901, al the age of 60 years. facing page 



1. A. Adult mule two-barred rock-pigeon, Columba lit ia. B, Vdult male chequered wild rock-pigeon, ( '. affmis. 12 



2. Adult C. linn, uniform gray third bar H 



3. A, Fully chequered wing of domestic pigeon about 6 weeks old. B, Chequers more strongly reduced in the 



anterior part of the wing of an adult homer 10 



4. A, Male homer, No. 111. B, female homer, Xo. K2 -'(I 



5. A, Female homer, No. 3. B, Male homer, No. 7. C, Female homer. No. 8 22 



6. A, Left wing of bronze-winged pigeon, Phaps chalcoptera. B, Adult male bronze-wing, Phaps elegans 26 



7. A, Wing of juvenal mourning-dove, Z\ naidura carolinensis. It. Wing of juvenal female bronze-wing, Phaps 



chalcoptera 28 



8. A, Wing of adult male' crested pigeon, Ocyphaps lophotes. 13, Wing of juvenal female crested pigeon, 0. 



Inphotes 30 



9. Adult female stock-dove, Columba anas 32 



10. Left wing of adult stock-dove, C. anas, No. 2 32 



11. Left wing and bars of both wings of adult stock-dove, I '. mnas, Xo. 3 32 



12. A, Wing-bars of adult stock-dove, C. anas, No. 5. B, Wing-bars of adult stock-dove, C. anas, No. 11 34 



13. Rudimentary fourth wing-bar in adult female stock-dove, No. 24 34 



14. Juvenal female crested pigeon, Ocyphaps lophott s, age 32 days 42 



15. Adult female crested pigeon, 0. lophotes 42 



16. Adult male crested pigeon, O. lophotes 44 



17. The longer left wing-coverts of adolescent (second plumage) male, adult male, and adult female crested pigeons 46 



18. Adult spotted pigeon, Columba maculosa 60 



19. A, Juvenal, 6 weeks old, Damar ring-dove, St. damarensis. B, Juvenal blond ring, St. risoria 68 



20. The original feather color-pattern, as shown in a female Japanese turtle-dove, Turtur orientalis 70 



21. Feather pattern in the European turtle-dove, Turtur turtur 70 



22. 1, Left wing of an adult European turtle-dove, T. turtur. 2, Third longer covert of juvenal T. oru nialis. 



3, Third longer covert of juvenal T. turtur. 4, Third longer covert of juvenal Si damarensis. 5, Third 



longer covert of juvenal Slig. senegalensis 72 



23. A, Adult Chinese turtle-dove, Spihpt lia chiru n&is. IS, Fifth feather, third row, of the neck-mark of Chinese 



turtle-dove. C, Wing of juvenal mourning-dove and ring-dove hybrid 72 



21. A and B, Scapulars and tertials from adult female Zenaidura carolinensis ill I. C and D, Scapulars and 



tertials from adult male Zenaida vinaceo-rufa (11). E, Third tertial from a hybrid (ZZ-A1) 7ti 



25. Selected feathers from juvenal mourning-dove, Zenaidura carolim nsis 70 



26. A, Neck-mark of adult male white-winged pigeon, Melopi lia It ucopti ra. B, Neck-mark of adult male mourn- 



ing-dove, Zenaidura carolim nsis 7t> 



27. A, Fifteen feathers from adult male Chamapelia passerina. B, Five feathers from adult female Ch. passerina 78 



28. A, Left wing of juvenal female Ch. passerina. 1*>. Feathers corresponding to figures of the male shown in 



plate 27. C, Selected feathers from a juvenal Ch. passi rina 80 



29. A, Chamcepelia talpacoti. B, Left wing of male Ch. passerina. C, Oblique bar in the "down'' stage in male 



Geopelia humeralis, age 16 days. D, Juvenal Geopelia humeralis 82 



30. A, Wing of adult female Chamcepelia passt nun. B. Adult ' 'hamospelia buckli iji. C, Selected feathers from 



juvenal ( 'hamapi lia pallescens 82 



31. A, Adult male Pvrislrra rim mi. 1-9, feathers from left wing of adult male /'. cinerea 84 



32. Illustrating origin of oblique wing-bar in Columbula picui. A. Columbula picui. B, Lilt profile of adult 



Chamcepelia passerina. ('. Right wing of Ch. passerina si 



33. Illustrating origin of oblique wing-bar in ( 'olumbula picui. A, Right wing of ' 'hama pt lia passt rina. B, Male 



Peristera mondetoura. C, Peristera sp.? D, Adult ma le /'< ristt ra geofroyi 84 



34. A, Adult male inca-dove, Scardafella inea. B. Neck-feather of Sc. inca. ('. Wing of juvenal inca-dove, 



3 weeks old. D, Scapular from juvenal Sc. iura SO 



3o. A, Wing of adidt male inca-dove, Sc. nun. I',. Adult male ' 'halcopt lia afra 86 



36. Adult scaled dove, Scardafella squamosa. 1-9, Selected feathers from an adult Sc. inca 8S 



37. A, Adult male (imprint striata. Figs. 1 to 7, Separate feathers from normal G. Striata 90 



38. A, Juvenal G. striata. B, Adult female a. striata 90 



39. A, Adult Geopt lia Iranquilla. Figs. 1 to 9, Neck-feathers of adult G. Iranquilla 92 



40. A. Adult male Geopelia humeralis. B, Feather from near front edge of neck of G. humeralis. C, Juvenal 



(,'. humeralis, age 28 days. D, Feather fr side of neck of G. humeralis. E, Feather from middle 



of breast of G. lawn rails 94 



41. A, Wing of juvenal G. humeralis, age M days. B, Wing of juvenal G. humeralis, age I8days. < '. Four inner 



tertials of G. humi ml is. 1), Three inner tertials of Zenaidura carolinensis (PP1). E, Three inner tertials 

 of Z. carolinensis (PP2) 94 



42. A. Female cape-pigeon, Ot na capt nsis. B. Right wing of adult female tambourine-dove, Tympanistria tym- 



panislria. < ', Three inner tertials of juvenal female tambourine-dove. D, Two inner long coverts from 

 same bird. E. Wing of adult male Chalcopi lia afra 98 



viii 



