xvi A HISTORY OF BIRDS 



ILLUSTRATION PAGE 



14. Stages in the Evolution of the Avian Palate - - - - 44 



15. Phylogenetic Tree of Descent ---.... 57 



16. The Whale-Headed Stork [Balczniceps) 68 



17. The Rufous Tinamou {Rhynchotus rufescens) ----- 75 



18. Wing Feather of a Curlew showing the Initial Stages in 



the Disintegration of the White Parts : and a Portion of 

 THE Quill Feather of a Gull showing the same Process - 81 



19. Humming-bird Fertilising Flowers of Marcgravia Nepenthoides. 

 (After Wallace) 106 



20. Devices to Secure a Permanent Food Supply - . . - 141 



21. Pouch of Great Bustard Dissected to show its Relation to 



the Gullet and Windpipe. (After Pycraft) 152 



22. The Display of the Great Bustard [Otis tarda) - - - 153 



From Newton's Dictionary of Birds. 



23. Types of Windpipes .-.....-. 167 



24. Nest of the H\mmer Head 178 



From Newton's Dictionary of Birds. 



25. Nest of the Humming-bird {Phoethornis eiirynome) - - - 182 



From Newton's Dictionary of Birds. 



26. Nest of Oven-bird 187 



From Newton's Dictionary of Birds. 



27. HoATZiN [Opisthocomus cristatus) 238 



From Newton's Dictionary of Birds. 



28. Wings of Nestling Hoatzin and Common Fowl, Upper Surface 240 



29. Wings of Nestling and Adult Hoatzin, and Nestling of Com- 

 mon Fowl, Upper Surface. (After Pycraft) 241 



30. Dissection of Beak-sheath of Cormorant showing Vestiges 



of Narial Aperture. (After Pycraft) 265 



31. Throat of House-sparrow showing the Difference Produced 



BY Abrasion between the " Winter " and " Summer " Plumages 284 



32. Red Game Cockerel 338 



By permission of the Editors of The Ibis. 



33. Black Polish Cock 339 



By permission of the Editors of The Ibis. 



34. Types of Combs. (After H. S. Davenport) 340 



35. The Sun-Bittern in Display 352 



From Newton's Dictionary of Birds. 



36. Wing of Arch^opteryx, and Hand of Young Ostrich to show 

 THE Structure of the Wrist 374 



