vi. BRITISH BIRDS. 



Pterylosis of the Black-throated Diver (underside I>AGE 

 and upperside). (Figs. 1 and 2) . . .. . . 96, 97 



Diagrams of the Heads of three marked Black- 

 headed Gulls, showing progress of the moult 

 in spring. (Figs. 1-6) 107-110 



Brown Flycatcher (Muscicapa latirostris) shot near 



Lydd, Kent, on May 21st, 1909 112 



Rabbit-hole opening on level ground, used by Star- 

 lings for nesting purposes, Roseness, Orkney. 

 {Photographed by N. F. Ticehurst) . . . . 119 



Starling's nesting site on the sea-shore, Lambholm, 



Orkney. (Photographed by N. F. Ticehurst) . . 120 



Red-rumped Swallow (Hirundo rufula), shot at Jury 



Gap, Kent, on May 16th, 1909 122 



Chart showing the routes or zones traversed by 



Migrants crossing the Mediterranean. (Fig. 6).. 137 



Thomas Southwell. Plate 11.. .. .. facing 173 



Site of the Nest of the Common Scoter on an Island 

 in an Irish Lough, June, 1909. (Photographed by 

 Major H. Trevelyan) 197 



" She offered the infuriated youngster a bunch of 

 heather." (From the " Home-Life of a Golden 

 Eagle ") 206 



Grasshopper Warbler feeding young at the nest. 



(Photographed by Miss E. L. Turner) . . . . 225 



Maps (I.-V.) showing the extent and progress of the 

 Irruption of Crossbills (Loxia curvirostra curvi- 

 rostra) in the British Islands in the Autumn of 

 1909. Plate 12 facing 228 



Raven feeding Young. (Photographed by F 



Heatherley) 235 



Raven after having fed Young. (Photographed by 



F. Heatherley) 236 



Hooded Crow, Female feeding Young. (Photographed, 



by F. Heatherley) 239 



Hooded Crow, Young birds quiet. (Photographed by 



F. Heatherley) 240 



Hooded Crow, Female peering round after feeding. 



(Photographed by F. Heatherley) . . . . . . 241 



