Ring colors and sizes used in the Alpine bearded vulkture reintroduction project

used rings
ringe.jpg - 194 kBall ring colors and ring sizes used in the alpine reintroduction project

New versus worn (after 10 years) rings

used versus worn rings
ringe2.jpg - 178 kBShown are new rings versus worn rings after 10 years on the birds in the fields

According to Hans Frey as from the year 1994 a broader version of the aluminium colour rings has been used for banding.