Photo: Royal Scottish Museum. 



MODEL OF THE EXTINCT DODO 



The Dodo was a large flightless pigeon inhabiting Mauritius. It 

 became extinct in the sixteenth century soon after the arrival of OWLS 

 Dutch sailors on the island: the pigs which these men brought with 

 them played a large part in the extermination. 



KINGFI5MEB3 



MOTMOTS 



MOUSE-B 

 GOATSUCKERS 



POUSE, PHEASANTS If 

 BRUSH -TURKE1 



After W. P. Pycraft. 



THE EVOLUTION OF BIRDS 



A diagrammatic attempt to express the relationship of the main groups of present-da 

 birds, based on a study of structural affinities. The main stock is shown as arising from th 

 ancestral "Pro-Aves," akin to the ancient Reptiles. Offshoots low down represent th 

 extinct Archaeopteryx and the different Ostrich-like birds, present and recent. Higher u 

 two main branches (B', B") are shown, each of them dividing again into two (i, 2; I, 2) am 

 then into the twigs representing the various groups. 



