Fourth Series. "I 

 Vol. XX, No. 239, / 



NOVEMBER 15th, 1916. 



No, 905. 



MM 



ZOOLOGIST 



ESTABLISHED 1843. 



nam 



EDITED BY 



FKANK FINN, B.A., F.Z. 



LATE DEPUTY SUPERINTENDENT, INDIAN MUSE 



CONTENTS. 



ARTICLES. 



On the Sexual Origin of the Nidificatory, Incubatory, and Courting 

 Display Instincts in Birds : an Answer to Criticism. Edmund 

 Sei.ous 401 



Notes on Birds seen during the Gallipoli Campaign. D. A. J. Buxton 413 



The Status of the Black Redstart in England as a Breeding Species, 



Rev. F. C. R. Jourdain, M.A., M.B.O.U. ... 417 



A Contribution to the Life-history of the Herring-Gull. Eric B, 



Dunlop ... 422 



Ornithological Notes from South Mayo. Robert F. Ruttledge ... 431 



NOTES AND QUERIES. 



Mammalia. 



Rats and Eggs. A. H. Patterson 435 



Do Rats Eat the Eygs of Poultry ? E. P. Butterfield 435 



Nesting of Rats and a Sequel. J. Steele Elliott 436 



Ave* 



Migration in Bedfordshire. J. Steele Elliott 

 Stonechat near Wilsden, Yorks. E. P. Butterfield .. 

 House-Martins' Nests usurped by House- Sparrows. E. P. 

 House-Martins and Sparrows. A. H. Patterson 

 Swallows Building in Chimneys. A. H. Patterson 



Anthozoa. 



Sagartia parasitica Mounting on Solaster and Hyas. H 



NOTICES OF NEW BOOKS 



437 



437 



Butterfield 438 



438 



438 



N. Milligan 439 

 440 



LONDON 



ADLARD & SON AND WEST NEWMAN, 

 BARTHOLOMEW CLOSE. 



PUBLISHED MONTHLY. 



PRICE ONE SHILLING. 



