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 2009. More than 5000 chicks have been wing-tagged for the time mainly in France but also in Holland, Danemark and Germany. However, resighting online data entry is possible for the three harriers species (Montagu's, hen harrier, marsh harrier) thanks to specific form for each program.
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