#DDA #Vögel in #Deutschland Winter 2022/23, #Mönchsgrasmücke, #Zwergschwan, #Trauerente
#Birds in #Germany winter 2022/23 (#german) #Blackcap, #BewicksSwan, #BlackScoter
#Fugle i #Tyskland vinter 2022/23 (#tysk) #Munk, #Pibesvane, #Sortand https://www.dda-web.de/downloads/publications/falke/70/koenig_et_al_2023_rueckblick_winter_2022_23.pdf