COMMON TEAL „ „ 244 PTARMIGAN „ „ 270 DOTTEREL „ „ 289 ROSEATE TERN „ „ 320 _PLATES._ FIELDFARES; MISSEL-THRUSH; BLACKBIRD _By G. E. Lodge_ To face p._ 39 ROOKS; JACKDAWS; STARLINGS „ „ 164 LONG-EARED OWL; CHAFFINCH; GREAT, BLUE AND, COAL TITS; GOLDCREST „ „ 196 GANNETS; GUILLEMOTS; HERRING-GULLS „ „ 221 MALLARDS; PEREGRINE FALCON; HERON; COOT „ „ 240 JAY; WOOD-PIGEONS; PHEASANTS „ „ 264 OYSTER-CATCHERS; RINGED PLOVER; LITTLE STINT; CURLEW „ „ 314 BLACK-HEADED GULLS; POCHARDS, SHOVELER; WATER-HENS „ „ 328 _ILLUSTRATIONS IN THE TEXT._ FIG. PAGE 1. SKELETON OF WING OF ARCHÆOPTERYX WITH REMIGES ATTACHED. _From ‘Natural Science’_ 4 2, 3. STRUCTURE OF A FEATHER _From ‘Ibis’_ 5 4. PORTION OF TWO ADJACENT BARBS „ 5 5. FOOT OF PELICAN _From Owen’s ‘Anatomy of Vertebrates’_ 10 6. FOOT OF PERCHING BIRD „ 10 7. FOOT OF KINGFISHER „ 10 8. STERNUM OF SHRIKE „ 13 9. WING OF NESTLING OPISTHOCOMUS _From ‘Natural Science’_ 15 10. WING OF YOUNG FOWL OF SAME AGE AS FIG. 9 (OF WING OF OPISTHOCOMUS) „ 16 11. WING OF ADULT OPISTHOCOMUS „ 17 12. WING OF HALF-GROWN OSTRICH „ 17 13. PELVIS AND HIND LIMB OF DIVER _From Owen’s ‘Anatomy of Vertebrates’_ 19 14. GIZZARD OF SWAN „ 21 15. SYRINX OF RAVEN (Posterior Surface) „ 26 16. SYRINX OF RAVEN (Lateral View) „ 26 17. SYRINX OF RAVEN CUT OPEN LONGITUDINALLY „ 26 18. SONG-THRUSH (¼ natural size) _By G. E. Lodge_ 41 19. THROSTLE’S NEST _From Photograph by R. B. Lodge_ 44 20. BLACKBIRD’S NEST „ 48 21. RING-OUZEL (⅕ natural size) _By G. E. Lodge_ 50 22. WHEATEAR (⅓ natural size) „ 52 23. STONECHAT (¼ natural size) „ 56