46 



THE FUNDUS OCULI OF BIRDS 



Fig. 66. 

 European Cuckoo (Cuculus canorus). 



Fig. 69. 

 Gila Woodpecker [Centurus (Melanerpes) uropygialis]. 



Fig. 67. 

 Sulphur-breasted Toucan (Rhamphastus lamatus). 



Fig. 70. 

 Derby Tyrant (Pitangus derbianus). 



Fig. 68. 

 Great Spotted Woodpecker (Dendrocopus major). 



Fig. 71. 

 Chimney Swallow (Hirundo rustled). 



Diagrams of the Pecten as seen by the Ophthalmoscope in Various Species of Birds. 



