77 

 Gen. XL. CYPSELUS. /%. 



148 sp. * Cypselus alpinus. Tem. The Alpine Swift. 

 „ „ 3felha JiUg. 



Nest. May — June, in fissures of rocks and old towers, in Alpine regions. 

 Eggs. 3-4, elongated, ivory-white. 



148 « 



148^ 



L48c 



149 sp. t Cypselus murarius, Tem. The Swift. 



„ „ ajjus Illig. 



Nest. May — June, in holes of walls, and in Church-towers. 

 Eggs. 3-4, white. 



149 « 



149 5 



149 c 



