Variazioni stagionali di abbondanza dell’allodola Alauda arvensis  in un’area agricola lombarda

Ferlini F.

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Seasonal variations of abundance of the skylark Alauda arvensis in an agricultural area of Lombardy (N Italy). I collected data on the skylark’s abundance in an agricultural area in Lombardy between December 2004 and November 2005. Skylark reached the maximum density (6.2 birds/10 ha) in the second half of December. In winter the number of birds per flock averaged 14.4 with a strong preference for crop-rotated meadows. During the breeding season the skylark’s density was stable, but decreased in summer. The number of birds per flock (6.6) in autumn was less than in winter.