LIST OF ILLUSTRATIONS. 



A Young Bittern in Norfolk, July 9th, 1911. {Photo- 

 graphed by Miss E. L. Turner). — Plate 2 Frontispiece 



Sketch Map of England and Wales to show the Dis- page 

 tribution of the Nightingale . . . . . . 4 



Sketch Map of England and Wales to show Orographical 



Features . . . . . . . . . . . . 5 



Robert Service. — Plate 1 . . . . . . . . facing 33 



Feather from the Head of a Water-Rail ; An Inner 

 Secondary from a Waxwing to show similarity 

 in Structure. {From a Microphotograph by Staff- 

 Sergeant A. Gibbons, R.A.M.C.) 43 



Ovaries of Falco cenchris . . . . . . . . . . 45 



Ovaries of Falco vespertinus . , . . . . . . 48 



Walter Charleton. {From the Engraving i7i his 



" Immortality of the Human Soul'' 1657) . . 62 



Walter Charleton. {From the Engraving in his 



" Inquiries into Hitman Nature,''' 1680) . . . . 67 



Alpine Ring-Ouzel. {Photographed by M. J. Nicoll) . . 72 



Young Bittern transforming himself into the sem- 

 blance of a Bunch of Reeds. {Photographed by 

 Miss E. L. Turner) 92 



Young Bittern ci'ouching (Fig. 3). {Photographed by 



Miss E. L. Turner) 94 



Young Bittern (Fig. 4). Striking upwards (Photo- 

 graphed by Miss E. L. Turner) . . . . . . 94 



Nest of Bittern. {Photographed by Miss E. L. Turner "i 96 



Pigeon in Flight. {Photographed by F. W. Headley). . 118 



