Black-legged kittiwake abundance and breeding productivity, OSPAR region II

<p>This data set contains information on breeding abundance and breeding productivity of black-legged kittiwake <em>(Rissa tridactyla)</em> in OSPAR Region II (Greater North Sea). These data have been used to construct a demographic indicator of breeding productivity as part of OSPAR Quality Status Report 2023, and for reporting under the European Union's Marine Strategy Framework Directive.</p>