BRITISnDIW)5 



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

 ASSISTED BY W. P. PYCRAFT, A.L.S., M.B.O.U. 



Contents of Number 8. January 1. 1908. 



The Breeding of the Hen -Harrier and Hobbj' in Surrey in 



1907, by C. H. Bentham and L. B. Mouritz . . . . Page 237 



The Wood-Pigeon Diphtheria, by C. B. Ticehurst, m.r.c.s., 



L.R.C.P., M.B.O.U. . . . . . . . . . . . . 243 



On the More Important Additions to our Knowledge of 

 Britisli Birds since 1899, by H. F. Witherby and N. F. 

 Ticehurst (Part VI.) — continued from page 184 . . 246 



The Grey-backed Warbler {Aedon familiaris) in Kent, bv 



J.B.Nichols '. 257 



Notes : — The Flanges and Mouth-spots of Nestlings (J. M. 

 Dewar). The Food of the Black-headed Gull (D. Losh 

 Thorpe, m.b.o.u., and Linna?us E. Hope). The Soaring 

 of Small Birds (F. W. Headley). The Down-stroke of 

 the Wing (F. W. Headley). Great Grey Shrike and 

 Eider Duck in Kircudbrightshire (The Duchess of Bed- 

 ford). Yellow-breasted or Willow-Bunting {Emberiza 

 aureola Pallas) in Norfolk (F. G. Penrose). On the 

 Colour of the Snowy Owl (C. W. Beebe). Sooty Shear- 

 water in Kent (N. F. Ticehurst), etc., etc. . . . . 258 



Books of the Month 265 



Reviews : — The Vertebrate Fauna of North Wales. The 



Home-Life of Some Marsh-Birds 266 



THE BREEDING OF THE HEN-HARRIER AND 

 HOBBY IN SURREY IN 1907. 



BY 



C. H. BENTHAM and L. B. MOURITZ. 



The year 1907 will rank as one of excejDtional interest in 

 the annals of Surrey ornithology, on account of three 

 species of considerable rarity, namely, the Hen-Harrier 

 [Circus cyaneus), Hobby (^Falco siihbuteo), and Marsh- 

 Warbler (^Acrocephalus fcdustris), having- nested within the 



