ILLUSTRATIONS 



TEXT FIGURES 



Figure Page 



1. Vegetation map of northeastern Africa 10 



2. Annual rainfall map of northeastern Africa 11 



3. Faunal areas of northeastern Africa 13 



4. Distribution of Mirafra poecilosterna 26 



5. Distribution of Eremopteryx leucotis 33 



6. Distribution of Oriolus monacha 67 



7. Outermost rectrices of five specimens of Oriolus monacha permistus to 



show variation, with a figure of the same feathers of 0. m. monacha for 



comparison 68 



8. Distribution of Parus niger 86 



9. Distribution of Turdoides leucopygia 91 



10. Distribution of Pycnonotus dodsoni 107 



11. Distribution of Pycnonotus barbatus 113 



12. Distribution of Turdus libonyanus 125 



13. Distribution of Sylvietta whytii 182 



14. Distribution of Eremomela griseoflava 187 



15. Distribution of Camaropiera brevicaudata 192 



16. Right outermost rectrix of Lanius excubitorius inter cedens to show varia- 



tion 272 



17. Distribution of Pomatorhynchus senegalus 295 



18. Distribution of Pomatorhynchus jamesi : 300 



19. Distribution of Onychognathus walleri 339 



20. Distribution of Cinnyris venustus 358 



21. Distribution of Zosterops virens 372 



22. Distribution of Pseudonigrita arnaudi 384 



23. Distribution of Sporopipes frontalis 396 



24. Heads of males of Ploceus luteolus luteolus to show variation in extent of 



black area 402 



25. Distribution of Amblyospiza albifrons 413 



26. Distribution of Quelea cardinalis 419 



27. Distribution of Euplectes capensis 424 



28. Relative dimensions of the tail of Euplectes capensis xanthomelas and E. 



c. kilimensis 426 



29. Distribution of Lagonosticta senegala 446 



30. Distribution of Estrilda astrild 450 



PLATES 



Plate 



1 . Prick's weaver {Ploceus fricki) Frontispiece 



Following Page 



2. Thick-billed raven {Corvuliur crassirostris) and pied crow {Corvus albus) 



3 . Ravens and vultures ; colony of weaverbirds' nests 479 



4. Two views in the Arussi Highlands 479 



XI 



