The main objective of this site is to provide forms for wing-tagged harriers resighting and recovery...
...specially for Montagu's harrier Circus pygargus for witch an important wing-tagging program has been led from 2007 to 2011.
Around 6000 chicks have been wing-tagged for the time mainly in France but also in Holland, Danemark and Germany.
Centralized form for wing-tagged harriers provides much better efficiency and facilitates the task for observers. A specific form for each tagging program is available.
A range of online tools is available to help fill annual summary concerning reproduction and banding harriers.