83 [Vol. xxi. 



2. Garden- Warbler (Sylvia hortensis). 



3. Young of the Hawfinch (Coccoihraustes cocco- 



thraustes). 

 4 & 5. Male and female Blackcap {Sylvia atricapilla^. 

 6 & 7. Male and female Heed - Bunting {Emberiza 



schamiclus). 



8. Hedge-Sparrow (Accentor modularis). 



9. Pied Wagtail {Motacilla lugiibris). 



10. Yellow Wagtail {M. rayi). 



11-13. Nest of Pied Wagtail with young Cuckoo {Cuculus 

 canorus), placed in a flower-pot in a greenhouse. 



11. Young of the Long - tailed Titmouse (Acredula 



rosea). 

 15 & 16. Male and female of the Red-backed Shrike 

 {Lanius collurio). 



17. A house at Cley, Norfolk, showing a remarkable 



number of nests of the House-Martin [Chelidon 

 urbica). 



18. Y'^oung of the Short-eared Owl {Asia accipitrinus). 

 19 & 20. Short-eared Owl. 



21-23. Young of the Kestrel [Cerchneis tinnunculus) . 



24. Lesser Tern (Sterna minuta). 



25- Common Tern (S. fluviatilis). 



26 & 27. Reeve {Machetes pugnax) on its nest. 



28 h 29. Ringed Plover (^-Egialitis hiaticola). 



30 & 31. Oyster-catcher (Hamatopus ostralegus). 



Mr. Pycraft remarked that while all the slides in this 

 series were remarkable for clearness of detail, some were of 

 especial interest as illustrating phases of growth in nestling 

 birds. 



The nestlings of the Hawfinch, for example, showed a 

 quite exceptional development of down, not met with in 

 any other species of British Finch ; while in the downy 

 nestlings of the Short-eared Owl the position of the " ears ^' 

 was a most conspicuous feature. 



The series of nestline; Kestrels showed some intcrcstiuir 



