Birds of Europe: Part I (Uncolored proofs)
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- Great Gray Owl, chouette lapone, Great Grey Owl plate 42
- Plate depicting: Strix nebulosa (J. R. Forster, 1772) -- Great Gray Owl, chouette lapone, Great Grey Owl. Alternate name, as printed: Surnia cinerea -- Great cinereous owl
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- Snowy Owl, harfang des neiges plate 43
- Plate depicting: Bubo scandiacus (Linnaeus, 1758) -- Snowy Owl, harfang des neiges. Alternate name, as printed: Surnia nyctea -- Snowy owl
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- Ural Owl plate 44
- Plate depicting: Strix uralensis (Pallas, 1771) -- Ural Owl. Alternate name, as printed: Surnia uralensis
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- Northern Hawk Owl, Northern Hawk-Owl, chouette épervière, plate 45
- Plate depicting: Surnia ulula (Linnaeus, 1758) -- Northern Hawk Owl, Northern Hawk-Owl, chouette épervière. Alternate name, as printed: Surnia funerea -- Hawk owl
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- Barred Owl, Búho listado, chouette rayée plate 46
- Plate depicting: Strix varia (Barton, 1799) -- Barred Owl, Búho listado, chouette rayée. Alternate name, as printed: Ulula nebulosa -- Barred owl
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- Tawny Owl plate 47
- Plate depicting: Strix aluco (Linnaeus, 1758) -- Tawny Owl. Alternate name, as printed: Syrnium aluco -- Tawny or Wood owl