Willow Warbler

Phylloscopus trochilus

Løvsanger

Løvsanger

Short abstract from the book:
The willow warbler is a very common breeding bird in all parts of Denmark. It arrives at the breeding grounds from mid-April and departs in August-September. Migrants pass through Denmark in large numbers from mid-April to early June and from August to early October. In Denmark the first willow warbler was ringed in 1923, with the highest numbers ringed in 1985 and 1990 (nearly 12,000). Only the robin has been ringed in greater numbers. The majority of the recovered birds were ringed during migration at the migration hotspots, mainly in May and to a lesser extent in August. The willow warblers ringed in Denmark belong to the population migrating SW from the breeding areas in southern Scandinavia: only one bird has been recovered north of 34°N, and none of the birds has either been ringed or recovered in Finland. The mean position is in Denmark from May to August. Fifteen per cent of the August recoveries were south of Denmark, and by September the mean position is in southern Germany. Early birds have been recovered in northern France on 23 July, in Switzerland on 15 July and in Morocco on 6 August. Most of the birds migrate via the Iberian Peninsula and northwest Africa. A few birds, probably belonging to populations breeding further north or east, have migrated SE to the eastern Mediterranean (Egypt, Libya and Greece). Two birds have been recovered during winter in Ghana (16 December) and the Côte d’Ivoire (8 January), which together with a spring recovery from Mali (16 May) indicates that the birds winter in West Africa south of the Sahara. During spring, birds have been recovered in the Mediterranean from 15 March to 10 May. The spring passage of the Mediterranean is further east than in the autumn. The first bird was recovered in Denmark on 15 April, but the mean position is not in Denmark until May. Fast birds migrated from Chriatiansø to Læsø (332 km) and from Blåvand to Lista (300 km) in one day. Most of the recovered birds were recorded by ringers (70 %). Of 216 dead birds, most had collided with windows, been hunted, collided with vehicles or were killed by cats.

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

Ringing data for Willow Warbler

 
Datavisning: genmeldinger    genmeldinger/mærkninger    mærkninger
Sæson: alle    vinter    forår    sommer    efterår
Periode: alle    før 2003    2003 og frem    seneste 365 dage


Data

Birds ringed
Birds ringed 99.547
Ringed as chicks 0 (0,0%)
Recoveries
No. of recoveries 3548
No. of individuals 0
Proportion recovered 0,0%