Common Swift

Apus apus

Mursejler

Mursejler

Short abstract from the book:
The swift is a common breeding bird all over Denmark, though less densely distributed in western Jutland. It is also a very common passage migrant. The first swift was ringed in Denmark in 1922, with the greatest numbers ringed in 1974 (263) and 1983 (215). The recovered birds were ringed from 20 May to 9 August, 74 % in July. The recovered birds are probably from the Danish breeding population. All recoveries are from Denmark and only seven birds were recovered more than 5 km from the ringing site. Ninety-five birds have been recovered at the ringing site up to 18 years after ringing. None of the swifts ringed in Denmark have been recovered between late August and early May. Seven birds ringed abroad have been recovered in Denmark, some probably escaping from bad weather in their home country, e.g. two English birds recovered in Denmark in July and August approximately two months after ringing. Since no Danish birds have been recovered during migration and in winter, we have no information about the migration route and winter quarters. In spring the first ringed birds to return to Denmark were on 10 May. Fifteen swifts ringed as chicks were recovered in a subsequent breeding season, of these 13 were found at the ringing site. Some of the swifts were caught several times in subsequent years, for example one bird was ringed in 1976 and recaptured at the ringing site in 1978, 1980, 1982 and 1984. Seventy-four of the recoveries were live recaptures. All 32 dead birds were reported without information on the cause of death.

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

Ringing data for Common Swift

 
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 545
Ringed as chicks 0 (0,0%)
Recoveries
No. of recoveries 150
No. of individuals 0
Proportion recovered 0,0%