BRITlSnDIRDS 



With which is Incorporated 



"THE ZOOLOGIST." 



EUirED BY H. F. WITHERBY, F.Z.S., M.B.O.U. 



assisted by 

 Rev. F. C. R. Jourdain, m.a , m.r.o.u... and Norman F. 

 ticehurst, m.a.. f.r c.s.. m.b.o.u. 



Contents of Number 12, Vol. X. May 1, 1917. 



Polygamy among Rooks. By Eric B. Dunlop . . . . 278 



The Moults of the British Passeres, with Notes on the Sequence 



of their Plumages. Part VII. By H. F. Witherby. . . 280 



Note.? : — 



Unusual Nesting Sites of Pied Wagtail (N. F. Ticehurst 



J. H. Owen) 



Ervthrism in Eggs of Grey Wagtail and Common Tern 



(D. H. Meares) . . . . " 



Rare Variety of Garden-Warbler's Eggs (D. H. Meares) . 



Nectar-eating by Blue Tits and Warblers (C. F. M 

 Swynnerton) 



White's Thrushes in Sussex (J. B. Nichols) 



Little Owl in Cheshire (M. V. Wenner) 



EvolutioiLS of a Peregrine and Starlings in Berkshire 

 (H. M. Wallis) 



Shoveler and Unusual Numbers of Pochard in Berkshire 

 (H. M. Wallis) 



Rare Type of Redshank's Eggs (P. F. Bunyard) 



Moor-Hens eating Fruit (Miss M. D. Haviland) 



291 



291 

 292 



292 

 293 

 293 



293 



294 

 294 

 295 



Short Notes : — 



Height at which Birds Fly. Red-breasted Flycatcher and 



Black Redstart at the Isle of May . . . ." . . . . 295 



Letters : — 



Occurrences of the Common Buzzard (E. G. B. Blcid^^ Wauii ) 295 



The Devonport Calandra Lark (J. H. Gurney) .. .. 296 



Porousness of Eggshell of the Tawny Owl (J. G. Mriynard} 29fi 



