Tadas Ivanauskas Zoological Museum organizes and coordinates bird ringing in Lithuania. A special department Lithuanian Bird Ringing Centre was founded in 1978. All the information about birds ringed in Lithuania (data on their ringing and finding) as well as information about birds ringed abroad but found our country is collected, processed and stored in this Centre. Data is exchanged with bird ringing centers in other countries. In average about 103,700 birds are ringed every year in Lithuania and since the start of systematical ringing in 1929 more than four million birds have been marked in the country.