92 Mr. D. A. Bannerman on the [Ibis, 



Hartert visited Tenerife in 1901 ; he only spent a short 

 time in the island, hut during that time he had an oppor- 

 tunity of examining Cabrera's large collection of l)irds, 

 and identified several species about which there had been a 

 doubt. 



Von Thanner lives at Vilaflor in Tenerife, and has been in 

 residence in the Canaries since 1902 to the present time. 

 His records of passing migrants are therefore extremely 

 valuable and his notes are reliable. Von Thaimer has 

 travelled extensively in the Archipelago in search of birds, 

 and visited all the islands including the outer islets, A 

 tabulated itinerary of his travels in the group would be 

 valuable, but I have found this impossible to compile 

 accurately from his published papers. A short resume is 

 appended however, which may be better than nothing. 

 Unfortunately his records of migrants are not very easy to 

 follow, as they are scattered about in various papers, chieHy 

 published in the ' Ornithologische Jahrbuch,' and chance 

 references to migrating birds are mixed up indiscriminately 

 with notes on the resident birds. The habit which certain 

 Austrian writers on ornithology have of recording birds 

 under the vernacular name only is greatly to be deprecated. 



It'merary of von Thanner' s journeys. 



Tenerife. Resident here from 1902 to date. During this time the 

 following' visits * were paid to the other islands of the 

 group in search of birds. 



Island. Year. Month, and date when knoion. 



Fuerteventura . . 1904. End of Feb. to end of March (? 23rd) 



1905. Mid-March (? 12th) to mid-April. 



1910. Early Jan. to end of Feb. (? 28th). 



1912, March to April. 



Pcilma 190.5. Early Jan. to 8 Feb. 



Hierro 1905. 8 Feb. to mid-March (? 12th). 



Gran Canaria .... 1909. Early Jan. to end of April. 



1912. Beginning of May to end of May. 



Lanzarote 1913. 7 May to 14 May. 



Graciosa 1913. 14 May to 17 May. 



AUegranza 1913. 17 May to 24 May. 



* [Azores. — A special trip was made to these islands, where two 

 months were spent in the spring of 1908 (? April and May).] 



