10 SYSTEMATIC INDEX. 



Page 



13. Falco vespertinus. Orange-legged Falcon, . . . 51 



14. Falco -flEsalon. Merlin Falcon, . . . . . 52 



15. Falco Tinnunculus. Kestrel Falcon, .... 52 



GENUS X. ACCIPITER. HAWK, 53 



16. Accipiter Palumbarius. Goshawk, . . . . 54 



17. Accipiter Nisus. Spawow-Hawk, . . . . 55 



GENUS XL CIKCUS. HABRIEK, 55 



18. Circus cyaneus. Ring-tailed Harrier, ... 56 



19. Circus cineraceus. Montagu's Harrier, ... 57 



20. Circus seruginosus. Marsh Harrier, .... 57 



FAMILY III. STRIGINJE. STRIGINE BIRDS, OR 



OWLS, 58 



GENUS XII. SYRNIA. DAY-OWL, 59 



21. Syrnia funerea. Hawk Day- Owl, . . . . 60 



22. Syrnia Nyctea. Snowy Day- Owl, . . . . 61 



23. Syrnia psilodactyla. Bare-toed Day-Owl, ... 61 



GENUS XIII. SCOPS. OWLET, 61 



24. Scops Aldrovandi. Aldrovandine Owlet, . . . 62 

 GENUS XIV. BUBO. EAGLE-OWL, 62 



25. Bubo maximus. Great Eagle- Owl, . . . . 63 

 GENUS XV. ULULA. HOOTING-OWL, 63 



26. Ulula Aluco. Tawny Hooting- Owl, . . . . 64 



27. Ulula Tengmalmi. Tengmalm's Hooting-Owl, . . 65 



GENUS XVI. Asio. TUFTED OWL, 65 



28. Asio Otus. Mottled Tufted Owl, . . . . 66 



29. Asio Brachyotus. Streaked Tufted Owl, . . . 67 



GENUS XVII. STRIX. SCREECH-OWL, 67 



30 Strix flammea. European Screech-Owl, ... 68 



ORDER II. YOLITATRICES. GLIDERS, 69 



FAMILY IV. CYPSELIN^E. CYPSELINE BIRDS, 



OR SWIFTS, 71 



GENUS XVIII. CYPSELUS. SWIFT, 72 



31. Cypselus Melba. White-bellied Swift, . . . 72 



32. Cypselus murarius. Black Swift, . . . . 73 



FAMILY V. HIRUNDIN^E. HIRUNDINE BIRDS, 



OR SWALLOWS, 73 



GENCS XIX. HIRUNDO. SWALLOW, 74 



33. Hirundo rustica. Red-fronted or Chimney Swallow, . 75 



34. Hirundo urbica. White-rumped or Window Swallow, 75 



35. Hirundo riparia. Bank Swallow, . . . . 76 



FAMILY VI. CAPRIMULGISLE. CAPRIMULGINE 



BIRDS, OR GOATSUCKERS, 76 



