Leach's Fork-tailed Petrel 



upper tail coverts white ; tail sooty black and deeply forked. 

 Length 8 in. ; wing 6 in. 



MADEIRAN FORK-TAILED PETREL 



Oceanodroma castro (Harcourt) 



An example of this bird was picked up dead in Kent in 

 December 1895. 



The home of this species is the islands lying off the 

 west of Africa, viz. Cape Verde, Madeira, Desertas, Salvages, 

 and Canaries, from whence individuals occasionally wander 

 to Europe. 



This species very closely resembles Leach's Petrel, but 

 the tail is hardly forked ,- the upper tail coverts are white 

 tipped with black ; and the bases of the tail feathers are 

 white. Length nearly 8 in. ; wing 5'9 in. 



WILSON'S PETREL 



Oceanltes oceanicus (Kuhl) 



This bird is almost cosmopolitan in distribution, but 

 perhaps the South Atlantic is its main home, and it is 

 commoner up the North American coast than on this side. 

 Several examples have been shot in this country. The legs 

 and wings are longer than in the preceding species and the 

 webs of the feet are yellow at their bases. The general 

 colour above and below is sooty brown with white on upper 



393 5o 



