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- [38] Extralimital occurrences of Willow Ptarmigan, Lagopus lagopus, in Maine CANADIAN FIELD-NATURALIST, 1996, 110 (04): : 715 - 715
- [39] APPROPRIATE AND INAPPROPRIATE HYPOTHALAMIC COLD THERMOSENSITIVITY IN WILLOW PTARMIGAN ACTA PHYSIOLOGICA SCANDINAVICA, 1987, 131 (01): : 73 - 80
- [40] THE CALLS AND ASSOCIATED BEHAVIOR OF BREEDING WILLOW PTARMIGAN IN CANADA WILSON BULLETIN, 1995, 107 (03): : 496 - 509