Expedition to the Eastern Canary Islands. 71 



13. Columba livia. — Several pairs were seen on the north 

 coast particularly amongst the sand-dunes. 



14. HcBmafopus niger meadeivaldoi (Plate VI.). — Two speci- 

 mens of Meade-Waldo^s Black Oystercatcher were procured 

 in this island over twenty years ago. Several collectors 

 who in recent years have devoted their energies to procuring 

 examples of this bird^ have been forced to return empty- 

 handed. I have separated this subspecies from Hcematopus 

 n. niger, with which it had previously been identified {vide 

 Banuerman, Bull. B. O. C. xxxi. 1913, p. 33). 



15. GEdicnemus oedicnemus insidarum. — A pair of Thick- 

 knees was found breeding close to the camp. Only one 

 e^^ had been laid ; the second, which was very beautifully 

 marked, was taken from the oviduct of a female, shot on 

 the 3rd of June. This pair was flushed the first day we 

 arrived in the island, and after circling round once or twice, 

 flew over the strait dividing Graciosa from Lanzarote. 



16. JSgialites a. alexandrina. — The Kentish Plover was by 

 far the commonest Wader met with. On Graciosa a vouni; 

 bird was obtained just able to fiy, and on the 5th of June 

 Ave found a nest close to that of a Thick-knee, both within 

 50 yards of our camp. Although we had suspected both 

 birds of having eggs, we did not discover the nests until we 

 had been in this camp for over a week. The two eggs of the 

 Kentish Plover were laid in a depression of the bare ground 

 between the points of two half-buried stones. The eggs 

 were quite freshly laid. I know of no nest so difficult to 

 discover. 



17. Squatarola squatarola. — A single flock of Grey Plovers 

 was seen on the reef on the south coast. 



18. Arenaria i. interpres. — Turnstones were very numerous, 

 the rocky coasts being just suited to them. A few were in 

 full breeding-plumage. 



19. Trlnga a. nlpina. — A very few Dunlin were seen. 



