BRiimDiRD: 



EDITED BY II. E. AVITHERBY, E.Z.S., M.B.O.U, 



assisted by 



Eev. F. C. E,. Jourdain, m.a., m.b.o.u., and Norman F. 



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



Contents or Number 10, Vol. IV. March 1, 1911. 



PAGE 



On the DeveloiDment of a Young Kestrel, by A. Geoffrey Leigh 298 

 The Wood-Pigeon Diphtheria : 1909-10— III., by C. B. 



Ticehurst,M.A.,M.R.C.S.,L.R.C.P., M.B.O.U. .. .. 304 



Notes : — 



" British Birds " Marking Scheme (H. F. W. ) . . . . 306 



Removal of F^ces by Birds (Oliver G. Pike) . . . . 306 



Extraordinary Nest Building (C. W. Colthrup) . . . . 307 



Arrival of the Redstart in 1909 (C W. Colthrup) . . . . 308 



Black Redstart in Carnarvonshire (R. W. Jone.^) . . . . 308 



Black Redstart in Wigtownshire (John N. Kennedy) . . 309 



Song-PeriodofDartford Warbler (Howard Bentham) .. 309 



Chiff chaff in Kent in Winter (H. G. Alexander) . . . . 310 



Brown-backed Warblers, not Grey-backed Warblers, in 



Sussex and Kent (H. F. Witherby) . . . . . . 310 



On the Nesting of the Tree-Sparrow (B. B. Hh iere) . . . . 311 



Hooded Crows in Carnarvonshire (R. W.Jones) .. .. 313 



Eggs of the Cuckoo (C. W. Colthrup) . . . . . . 313 



The Diurnal Flight of the Barn-Owl (Eric B. Dunlop) . . 314 



Montagu's Harrier in Norfolk (W. Portal) .. .. 315 



Rough-legged Buzzard in Northumberland (J. M. Charlton) . . 315 



ShaginSuffolk(Rev. Julian G. Tuck) .. .. .. 315 



Gadwall in Surrey (Howard Bentham) .. .. .. 316 



Red-crested Pochard in Sussex (H. W. Ford-Lindsay) . . 316 



TlireeEggsinaWood-Pigeon'sNest(C.W. Colthrup) .. 316 



Stock-Dove Chasing a Jackdaw (Eric B. Dunlop) . . . . 316 



Zone-marked Egg of Black-headed Gull (Howard Bentham) 317 



Oyster-Catchers Following the Plough (Nevin H. Foster) . . 317 



Early " Drumming" of Snipe (Tom Smith) .. .. 318 



Short Notes : — Rare Birds at the Isle of May. White Wagtail 

 Breeding at Fair Isle. Early Breeding of the King- 

 fisher and Dipper in Derbyshire in 1910. Supposed 

 Spoonbill in co. Donegal. Supposed Occurrence of 

 the Spotted Sandpiper in Yorkshii-e. Wood-Sandpiper 



in CO. Donegal .. .. .. •• •■ 318 



Review : — The British Warblers — A History, with Problcriis 



of their Lives . . . . . . . • • ■ 320 



w 



