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- [36] Diets of northern pygmy-owls and northern saw-whet owls in West-Central Montana WILSON BULLETIN, 1996, 108 (01): : 123 - 128
- [40] The numerical response of breeding Northern Saw-whet Owls Aegolius acadicus suggests nomadism Journal of Ornithology, 2010, 151 : 499 - 506