Feral, in Oak
Colony in hollow (fallen) oak. Partially destroyed when cutting.
Nest in hollow tree
Active hive in Populus alba - the last shot was taken on July 4 2018 to get a better view of the entire hive entry - there is also a video available taken on June 22 for more views of tree - & of bee activity. This was on public property not far from the Arno River. The tree's observation # is 14038495.
Bienenschwarm auf Nistplatzerkundung in Baumhöhle