Not a bat signal, but possibly a bat shelter, near salamander pond, lille Morttjern Sunday 20 november 2022, #autumn2022 #høst2022 #november2022 #høst #autumn #bat #bat_shelter #flaggermus #flaggermus_hus #salamander #salamanderdammen #sti #gangvei #gjelleråsen #lille_morttjern #gjelleråsmarka #nittedal #viken #norge