The Ringing and Monitoring Station Mouth of Caset has been back active for a few days. This is the structure located in thepass of the same name near Monte Tremalzo, to be precise in the Municipality of Ledro (province of Trento). Here are the latest updates made public on Facebook: "The instability of the weather around the pass results in very limited catches, but well diversified: local young bullfinch, finch, coal tit and sparrow hawk, but also active migratory as blackcap, prispolone and, at the end of the day, also the second white man of the season.
The taxonomy of this white passerine, among the first to abandon the breeding areas, has undergone recent revisions, which have led to a distinction between the western and eastern populations, typical of the Balkans, today identified as the eastern white luì ”.