|ring area||Nederland, Amsterdam/Arnhem|
|observations||4636, of which 534 are captures|
|ringed in||2012 to 2021|
In Arnhem, Amsterdam (both since 2008) and Maastricht (since 2011) Mallards are ringed in the context of the RAS-project. The used colour rings are white with black inscription. The inscription consists of two digits and a letter.