In France the Siskin is known as the Tarin des Aulnes (Alders), so it is not really surprising that this male is feeding on last year's mature female alder seed catkins. The male alder catkins are longer and resemble those on hazelnut trees.
In France the Siskin is known as the Tarin des Aulnes (Alders), so it is not really surprising that this male is feeding on last year's mature female alder seed catkins. The male alder catkins are longer and resemble those on hazelnut trees.