Morphological changes in European goldfinches ( Carduelis carduelis ) released by bird trappers
Contributor(s):: Dominguez, J., Vidal, M., Tapia, L.
In Spain, several Autonomous Communities have granted licenses to capture European goldfinches (Carduelis carduelis parva) during the post-breeding period, from August to December. In Galicia (NW Spain) and other Autonomous Communities, after 5-7 months of captivity, many birds are released. We...