1919-] Birds of the Canary Islands. 97 



occurs in the Archipelago, the original reference and the 

 type locality of the bird are given in every instance. 



In a case where any doubt exists as to which race occurs 

 in the Canaries, I have used binomial nomenclature, and then 

 no original reference is given. 



On the other hand, if the evidence points strongly to a 

 particular subspecies occurring in the Archipelago, but still 

 a doubt existSj I have included the bird under the binomial 

 name, but added the trinomial designation of the probable 

 subspecies to which it belongs in square brackets immediately 

 beneath the binomial name, and have then given the original 

 reference and type locality of this race {e. g. in this part 

 \\\\{\ev Emheriza cahindra, Motacilla flava and M. cinerea). 



Throughout the entire Systematic List and Appendix A 

 I have taken considerable pains to state in every instance 

 from whom or from what writings 1 have obtained my infor- 

 mation. Every record and every quotation has an original 

 reference attached, so tliat no difficulty should be experienced 

 by those who wish to check my work in the future. 



Ackno wledg-m ents . 



To Lord Rotlischild and Dr. Hartert I owe a sincere debt 

 of gratitude for their kindness to me Avhile working through 

 the fine Canarian material at the Tring Museum. 



Likewise am I indebted to Mr. Chubb and Mr. Wells for 

 their great help at the British Museum (Natural History) ; 

 to Mr. Iredale for considerable assistance in the literature 

 of the subject ; and last, but not least, to Mr. W. L. Sclater 

 for his unfailing kindness and advice. 



It must be remembered that this paper is but largely a 

 compilation from every available source of knowledge, and 

 that without the field and systematic work of many ornitho- 

 logists who have given months and sometimes years to their 

 subject, such a list as this could never have been attempted. 



If this list does what I have set out to accomplish and 

 brings our knowledge of the Birds of the Canary Islands 

 right up to date, the credit lies entirely with those ornitho- 

 logists who have laboured so untiringly in the past on the 



SER. XI. VOL. I. H 



