17:4517:45, 29 November 2021diffhist+14
m
Common merganser
"mainly" fish, because they eat plenty of other things as well. To my knowledge according to sibley, only adult males in display and begging young make the whistle.
17:4517:45, 29 November 2021diffhist+14
m
Common merganser
"mainly" fish, because they eat plenty of other things as well. To my knowledge according to sibley, only adult males in display and begging young make the whistle.