CONTENTS. 
Spizaetus, .... 
The Crested Spizaetus. 
Spizaetus crystatellus. Plate XXI. 
Circus, ..... 
Tire Common Harrier. 
Circus ajancus. Plate XXII. 
The Ash- Coloured Harrier. 
Circus cineraceus. Plate XXIII. 
The Marsh Harrier. 
Circus rufus. Plate XXIV. 
Strigida> — Owls, 
Eggs of Harriers and Owls. Plate XXV. 
Head of Barn Owl, natural size. Plate XXVI. 
Strix, . 
White or Barn Owl. 
Strix flammed. Plate XXVII. . 
Ulula, ..... 
The Tawny Owl. 
Ulula stridula. Plate XXVIII. 
Noctua, .... 
Tengmalm’s Night Owl. 
Noctua Tengmalmi. Plate XXIX. 
Scotophilus, .... 
The Naked-Footed Night Owl. 
Scotophilus nudipes. Plate XXX. . 
Otus, . . . . 
The Long-Eared Owl. 
Otus vulgaris. Plate XXXI. 
The Short-Eared Owl, . 
Bubo, .... 
The Great-Eared Owl, or Eagle Owl. 
Bubo Maximus. Plate XXXII. 
Scops, . . 
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