66 Mr. D. A. Bannerman on cm Ornithological 



9. Pandion h. haUaetus. — Often seen round tlie coasts ; 

 there is no suitable nesting-place on this island, but they 

 breed on Montana Clara, a very short distance away, and 

 almost certainly on El Risco (Lanzarote). 



10. Neophron j)ercnopterus. — Not resident but often seen. 

 They come over from Lanzarote, where they nest on El 

 Risco. 



11. Piiffinus assimilis baroli. — The Little Dusky Shearwater 

 had already bred and departed, according to the fishermen 

 in Graciosa. They told me that the "^ Tahoce " came in 

 March and had left Graciosa by the end of May, but 

 that I should still find some remaining on the neighbouring 

 island of Montaiia Clara. If P. a. baroli does actually 

 breed on Graciosa, I am at a loss to account for the dis- 

 crepancies between the breeding-season in the two islands. 

 When I arrived in Montana Clara I found P. a. baroli 

 with young in down, of which an account is given in my 

 description of that island (see p. 79) . 



12. Pv/ffinus kiihli fiavirostris. — The Yellow-billed Shear- 

 water swarms over the entire island. Three perfectly distinct 

 nesting-sites were chosen, which I shall attempt to describe. 

 When Mr. Meade-Waldo visited the island he explained how 

 '' the Petrels burrowed at the foot of the ' Salada Mora ' 

 bushes, their roots preventing the sand from filling in.'" At 

 the present day conditions have changed, and on Graciosa, 

 at any rate, burrows are not often used. 



A little to the east of Mt. Amarilla, just above high water- 

 mark, lies a mass of huge boulders piled up one upon another, 

 over the top of which loose sand has drifted, the whole being 

 closely overgrown with a scrubby plant. Small gaps are left 

 between the boulders, and through one of these we managed 

 to squeeze; once inside, our electric torches revealed low 

 caves, into which we had to crawl on hands and knees, and 

 from which a network of subterranean passages led in all 

 directions. In these dark recesses, abounding in nooks 

 and crannies, the large Shearwaters were sitting. The 

 glare of the torches dazzled their eyes as they shuffled into 



