Black-headed Gull

yellow ring with 5 characters (first=S)

Details

coordinator
Luka Jurinovic
website none
cr-birding https://cr-birding.org/node/5832
ring area Croatia, Zagreb
animals 1336
observations 1710, of which 1336 are captures
ringed in 2021 to 2022

We started this ringing project in 2021. Most of the Black-headed Gulls are ringed in the winter time on the JakuĊĦevec rubbish tip in Zagreb, Croatia. Some are also ringed on other rubbish tips. A small number is ringed on breeding colonies. We use yellow rings with a 5 alphanumeric code, starting with an S.

Example bird

S1301
Shorthand: Y-S1301 explanation
This is an arbitrary example of a bird that might not exist.

Data entry