| Titre : | Aves 36(1-2) - Sept., 1999 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Dries Van Nieuwenhuyse, Auteur ;
Friedel Nollet, Auteur ;
Andy Evans, Auteur
Red-backed shrikes Lanius collurio are in widespread decline across much of their range in north-west Europe. A review of the ecology of this bird suggests that populations of the large insects preyed upon by red-backed shrikes have declined as [...]
Article
Emmanuel Chabot, Auteur
In the past, Red-backed Shrikes were abundant in North-West France (Brittany, Normandy, Atlantic coast). During the last century this species was hunted by man and suffered from alterations in the agricultural landscapes. In this eccentric regio[...]
Article
Heinz Kowalski, Auteur
In 1985 the Red-backed Shrike was "the Bird of the year" in Germany: it was then in serious decline all over the country. In the beginning of the nineties a new census was organized in the whole (reunified) Germany: the population had increased [...]
Article
Georges Bechet, Auteur ;
Marc Moes, Auteur
The Lesser Grey Shrike (Lanius minor) was a regular but rare breeding bird in the last century; it was no more observed since 1946. Up to the fifties the Woodchat Shrike (Lanius senator) was present all over the country but mainly in the south; [...]
Article
Arend J. van Dijk, Auteur ;
Fred Hustings, Auteur
At the beginning of the 20th century the Red-backed Shrike was a widely distributed and farily common breeding bird in The Netherlands, with an estimated breeding population of at least several thousands pairs (see figure 1 for some areas regula[...]
Article
Dries Van Nieuwenhuyse, Auteur
Population trends in shrikes Laniidae have been very negative in most European countries for the last thirty years (Tucker et al., 1994). In Belgium the Red-backed Shrike Lanius collurio and the Great Grey Shrike Lanius excubitor showed dwindlin[...]
Article
Marc Ameels, Auteur
In 1995 a pair of Woodchat Shrike raised two or three youngs along the valley of "the Chiers" in the area of Torgny, representing the first breeding of the species in Belgium since 1982. Another pair with one young was found close to this site a[...]
Article
Stephane Bocca, Auteur
In 1997 and 1998 a survey was carried out on two populations of Great Grey Shrikes in the Ardennes. The densities observed in both areas fluctuate much (1.6 to 11.7 districts/100 km2). The breeding success was low: 11 youngs/9 pairs (3 successfu[...]
Article
Rene Dumoulin, Auteur
The population of Red-backed Strike recently increased in the area of Aywaille (24 km south of Liege). In 1997 it reached 24 pairs in a 36 km2 area. The components of the territories are varied, mainly extensive meadows, with hedges and lanes. T[...]
Article
Denis van der Elst, Auteur
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 favourabl[...]
Article
Jean-Louis Coppee, Auteur
This study took place between 1991 and 1997. In 1990 10 territories at least of Red-backed Shrikes were observed but none of Great Grey Shrikes. The Great Grey Shrikes population looses 50% every ten years, which means that within 30 years the r[...]
