Kjell Einar Erikstad, , The Influence of Weather on Food Intake, Insect Prey Selection and Feeding Behaviour in Willow Grouse Chicks in Northern Norway, Ornis Scandinavica (Scandinavian Journal of Ornithology), Vol. 13, No. 3 (Dec., 1982), pp. 176-182
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Erikstad et al. (1982) studied this question.
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