Zvika Abramsky, Uriel Safriel, Seasonal Patterns in a Mediterranean Bird Community Composed of Transient, Wintering and Resident Passerines, Ornis Scandinavica (Scandinavian Journal of Ornithology), Vol. 11, No. 3 (Dec., 1980), pp. 201-216
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Abramsky et al. (1980) studied this question.
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