VI 



CYPSELIDAE 



425 



Africa, Abyssinia, and Uganda, and exceptionally on the Congo ; 

 C. horns across Tropical Africa ; C. andicola in Argentina, Peru, 

 and Bolivia : C. montivagus in the last two countries. C. j^ci- 

 Jic2(s of East Asia, with Japan and the Burmese countries, reaches 

 Australia in winter. Some species lay four or five eggs, and 



,.cf : 



M-=^-'^|f' 



Fig. 88. Swift. Cypselus apus. 



(From Xatural History of Selborne. 



O. melanoleucus of western North America utters a peculiar twitter 

 in its nest, placed in clefts of rocks.^ Five species of Tachornis, or 

 Palm-Swift, here included under CypseUiS, are found throughout 

 the Ethiopian Eegion, from India and the Malay countries to 

 China, and in the West Indies ; T. {Claudia) squamata occupying 

 Guiana, Brazil, and East Peru. The toes point forward in two 

 pairs, the tail is forked. These birds usually attach tlieir nests 



^ Two large ticks {Anapera fimbriata) are usually foiuul on this bird, similar to 

 Anapera jMllida of C. apus. 



