BUKER JB (1985) Short contributions: Wintering site fidelity in Great Grey Shrike Lanius excubitor. LIMOSA 58 (1): 34-35.
Great Grey Shrike Lanius excubitor Observations of three ringed Great Grey Shrikes within one kilometre from sites where in previous winters Great Grey Shrikes were ringed and the species is lacking as a breeding bird, indicate return to former winter territories.
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