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Strix
genus of Strigidae within Strigiformes

trivial name latin name name specimens
Tawny Owl
Strix aluco 		Strix aluco 9 9
Great Grey Owl
Strix nebulosa 		Strix nebulosa 2 2
Ural Owl
Strix uralensis 		Strix uralensis 4 4
Brown wood owl
Strix leptogrammica 		Strix leptogrammica 2 2
Rufous-legged or Chaco Owl
Strix chacoensis 		Strix chacoensis 1 1

species comparison1)

1) According to Hartmann (2000a, 2000b and 2016)
genus Strix: maximal number primaries: 10, maximal number secondaries: 15, maximal number retrices: 12

Random specimens

Tawny Owl
Strix aluco
Brown wood owl
Strix leptogrammica
Rufous-legged or Chaco Owl
Strix chacoensis
Ural Owl
Strix uralensis