Letters, Extracts, and Notes. 387 



Islands, but it might be added that it is confined to certain 

 islands {vide Ibis, 1914, p. 231), 

 ToTANUS HYPOLEUCUS (p. 230). Proof that the Common Sand- 

 piper breeds in the Canary Islands is still wanting. There 

 is no reason why it should not do so. 



NUMENIUS ARQUATA (p. 237), 

 NUMENIUS PH^OPUS (p. 238). 



Both the Curlew and Whimbrel are repoi"ted by the same 

 authority, Herr von Thanner, to have bred in the Canary 

 Islands. It mny be of interest to give references to 

 von Thanner's statements {vide (1) Orn. Jahrb. 1908, p. 213, 

 et (2) 1913, p. 190). I certainly wish to prove this for 

 myself. 



^GiALiTis HiATicuLA (j). 244). The fact that two races of the 

 Common Ringed Plover occur in Great Britain is now 

 absolutely proved {vide Lowe, Ibis, 1914, p. 39.5). 



^GiALiTis DUBiA (p. 246). The Little Ringed Plover is known 

 to breed in the Canary Islands — a fact worth recording 

 {vide Ibis, 1912, p. 582). 



Sterna sandvicexsis (p. 268). " The Sandvnch Tern breeds . . . 

 occasionally . . . in the eastern Canary Islands." There is abso- 

 lutely no proof of this. If it bred in the eastern group in 

 1841, it certainly has ceased to do so long since. It must be 

 remembered that Bolle in 1857 did not distinguish between 

 this and the Common Tei-n, which latter used to breed in 

 enormous numbers in the islands, but which has now 

 practically been exterminated by egg-hunters. 



Uria troile (p. 277). The Common Guillemot has been known 

 to reach the shores of the Canary Islands. It is recorded 

 by Webb & Berthelot in 1841 and Bolle in 1857, who saw a 

 stuffed specimen in the Leon collection in Gran Canaria. 

 This is an additional proof that it sometimes wanders 

 south to about 30° N. in the Atlantic, as stated in the 

 B. O. U. List. 



Thalassidroma pelagica (p. 281). Has bred in Madeira, vide 

 " Distribution and Nidification of the Tubinares in the 

 North Atlantic Islands" (Ibis, 1914, p. 448). 



Oceanodroma CASTRO (p. 283). The Madeiran Petrel undoubtedly! 

 breeds in St. Helena {vide Ibis, 1914, p. 452). 



