BRITISH BIRDS. 113 



GENUS LXXIX. SURNIA, Dumeril (1806). 



154. S. ulula (Linn.). EUROPEAN HAWK-OWL. 



Hab. Northern Europe. Migrating to Central Europe 

 in winter. 



A single example has been taken near Amesbury, Wilts 

 (R. B. Sharpe, P.Z.S. 1876, p. 334). 



154a. S. ulula eaparoeh (Linn.). AMERICAN 



HAWK-OWL. 



Hab. Northern Nearctic region. In winter southward 

 to Northern United States. 



Most of the Hawk Owls taken in Britain appear to 

 belong to this form. It has occurred three or four times 

 in Scotland, once in Cornwall (1830), and once in Somerset 

 (1847). 



GENUS LXXX. NYCTALA, Brehm (1828). 

 Head rather large ; without ear-tufts ; openings of ears 

 large; facial discs tolerably apparent; wings fairly long ; 

 tail short. Tarsus and toes clothed with tolerably large 

 feathers. 



155. Nyetala tengmalmi (Gmel.). TENGMALM'S OWL. 



Hab. Northern Palasarctic region. 



Male : above umber-brown, with large oblong white 

 spots on the wing-coverts and mantle, and smaller drop- 

 shaped white marks on the head ; facial discs greyish- 

 white with a dark rim ; below whitish tinged with buff, 

 irregularly banded on breast and striped on flanks with 

 dark brown; bill horn-white; toes clothed with mottled buff 

 and white feathers. Length 8*50. Female: a little larger. 



About sixteen examples have been taken in various 

 parts of England, and two in Scotland. 



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