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Storaas, T.5
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61
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0007707238
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Blue grouse (Dendragapus obscurus)
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Poole, A., Stettenheim, P & Gill, F. (Eds.). The Academy of Natural Sciences, Philadelphia, Pennsylvania
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Zwickel, F.C. 1992: Blue grouse (Dendragapus obscurus). -In: Poole, A., Stettenheim, P & Gill, F. (Eds.); The Birds of North America, No. 15. The Academy of Natural Sciences, Philadelphia, Pennsylvania, 28 pp.
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(1992)
The Birds of North America, No. 15
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Zwickel, F.C.1
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