Aves, p�le ornithologique de Natagora

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Aves, 35/3-4 | 1998 | 231-231

  Impressive passage of Fieldfares (Turdus pilaris)
Tricot, J.

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Article summary

On February 22nd 1999, a south-west-directed flight of Fieldfares was observed. With an estimated width of 25-50 m and a duration of 3 minutes, it was estimated to involve zbout 10.000 birds.

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