SUPPLEMENTARY NOTES ON BIRDS. 



459 



Sandwich Tern. — Obtained on Guadalete in March and April 

 on passage. 



Gannets and Skuas. — Observed in Straits and Bay of 

 Trafalgar in winter and early spring. 



Red-throated Diver. — Several shot in winter. 



Shearwaters. — In Straits : observed in hundreds off Malaga 

 in March. 



Stonny Petrels. — Common on the coast, and probably breeds 

 on some of the rocky islands. 



STORK'S NEST OX STRAW-STACK. 



