Aves, p�le ornithologique de Natagora

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Aves, 36/1-3 | 1999 | 53-64

  The Red-backed Shrike (Lanius collurio) in Famenne.
Van Der Elst, D.

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Summary : The Famenne is a large shisty area of 973 km2 on the eastern side of the river Meuse, between Beauraing and Hamoir. Apart from the wooded areas ( 384 km2) and towns and villages (170 km2), a remaining area of 419 km2 open land should be favourable to the Red-backed Shrikes. A study covering the whole Famenne in 1997 enabled to localize 571 districts of Red-backed Shrikes. It is the highest number ever imagined or found in the Famenne, knowing that in 1973/1977 the total population was estimated at 85 districts and in 1988/1989 at 180/200 districts. This species inhabits most of the open land of the Famenne. The highest densities reach once 17 districts, twice 13 districts and once 12 districts per 1 UTM km2 square (see plate 1). These are found in the Military Camp of Marche-en-Famenne where the densities have remarkably increased since its opening in 1981 (see plate 3). The Famenne traditionally shelters a fauna and a flora of high quality : the coming back of the Red-backed Shrike is certainly due to the preserved characteristics of the landscape.

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