Arctic Tern

Sterna paradisaea

Havterne

Havterne

Short abstract from the book:
The arctic tern is a common breeding bird in Denmark with an estimated population of 8,000–9000 pairs. It is a common passage migrant, most frequent in July–August and April–May. In Denmark the first arctic tern was ringed in 1927, with the majority ringed in the 1970s. The recovered birds have been ringed in colonies all over Denmark in May–July. The Danish arctic terns start their migration in July. First, some birds disperse in many different directions and several have been recovered in Norway, Sweden, England and Scotland. After this period of dispersal the migration is directed SW along the west coast of continental Europe. Three young birds have been recovered in Ghana and Liberia in August. In September all recoveries are from abroad. Thirty-three Danish arctic terns have been recovered in west and southern Africa from Ghana to South Africa. One Danish bird was recovered in the pack ice in Antarctica in February and another was recovered on the west coast of Australia in October. Only a few birds have been recovered in spring, perhaps because the birds migrate further from the coastline. The first arctic terns were recovered in the breeding colonies in mid-April, though the majority not until May. Many birds do not return to Denmark before they are three years old. Although most arctic terns return to their hatching/breeding colony, there are several examples of exchange between the different Danish colonies or with colonies in Germany, Sweden, the Netherlands and England. Outside the breeding season, Denmark is mainly visited by arctic terns from the countries around the Baltic as well as from northwest Germany. Most of these foreign visitors have been found in western Jutland but some also in inner Danish waters, mainly birds from the Baltic Sea and northeast Germany. Ninety-five per cent of the foreign birds have been found in May–August.

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

Ringing data for Arctic Tern

 
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 8.154
Ringed as chicks 10.538 (129,2%)
Recoveries
No. of recoveries 2147
No. of individuals 0
Proportion recovered 0,0%