PREFACE. 



The thirty-fourth volume of the Bulletin of the British 

 Ornithologists' Club contains the Report of our Migration 

 Committee on the movements in England and Wales of a 

 number of common migratory species during the autumn of 

 1912 and the spring and early summer of 1913. 



Under the headings Golden-Crested Wren (p. 231), and 

 Hedge-Sparrow (p. 271), the Recorders have recognised 

 British and Continental races of these species. It should, 

 however, be pointed out that in the forthcoming edition 

 of " A List of British Birds,' compiled by a Committee 

 appointed by the British Ornithologists' Union, these and 

 several other supposed British races are not recognised as 

 distinct. 



The present Volume forms the ninth of the series 

 prepared by our Migration Committee ; a tenth Report 

 will be issued next year, after which the results of the 

 enquiry will be summarized in a final volume. 



The Editor of the Bulletin regrets that his ever-increasing 

 official duties have obliged him to resign that post. 



The Members of our Migration Committee are jointly 

 responsible for the following Report. 



(Signed) W. R. OGILVIE-GRANT, 



Editor. 



British Museum (Natural History), 

 London. S.YV. 



1st December. l'Jl-1. 



