Eurasian Reed Warbler

Short abstract from the book:
The reed warbler is a common breeding bird in reed beds all over Denmark. Birds arrive in late April and depart in August-September. Passage migrants are observed in May-June and from August to early October. In Denmark the first reed warbler was ringed in 1926, with the highest number ringed in 1990 (4,102). The majority of the recovered birds were ringed in the migration season, and most birds were ringed in western Denmark. Only five birds ringed as chicks and 17 ringed as adults in the breeding season have been recovered. Passage migrants in Denmark come from southeast Norway, southern Sweden and southern Finland, but also from the Baltic countries and western Russia. From Denmark the reed warblers migrate SW via the Iberian Peninsula to West Africa south of the Sahara. The migration direction of birds ringed in eastern Denmark is more westerly than that of birds ringed in western Denmark – the directions thus converge along the route on the Iberian Peninsula. In August the mean position is in the Netherlands. By 8 September the first birds have reached the Iberian Peninsula and Africa. The mean migration direction of young birds is more westerly than that of adults. Furthermore, first-year birds pass Belgium around one week earlier than older birds (median dates 24 and 16 August respectively). Four birds have been recovered during winter; of these only one is from the presumed winter quarters south of the Sahara. The spring migration follows the same route as in autumn, and starts rather late: the first recovery from north Europe (Belgium) is from 24 April and the first recovery from Denmark is from 12 May. A bird ringed on 17 May in Morocco was recovered in northern Jutland on 6 June. Three birds ringed in Denmark in the breeding season were recovered in a subsequent breeding season; none of these was recovered more than 5 km from the ringing site. Most of the recovered birds were recorded by ringers. The most frequent known cause of death are collisions with windows and hunting.

Read more about the species in the chapter from The Danish Bird Migration Atlas here

Ringing data for Eurasian Reed Warbler

Datavisning: genmeldinger    genmeldinger/mærkninger    mærkninger