Skadelig effekt af ringmærkning?
jeg faldt lige over følgende: Om ringmærkning: www.netfugl.dk...urban_myth cic.: In October 1989 i found a long-eared owl pellet with 13 gold-crest rings in it!!!! It was during bad weather at Christiansoe, Bornholm, Denmark. No news bird arrived to the island - so the LEO had to eat up from exhausted goldcrest - prefereble the ringed once since they were most exhausted... fugle belastes altså af ringene, og bliver offer for prædation. Det er sørme tankevækkende. |