Vierwaldstättersee in Luzern
Schlüsselwörter
lucerne,
duck,
cygnet,
anas platyrhynchos,
teal,
mute swan,
wild duck,
water bird,
lakeshore,
feed,
nest,
chick,
feather,
beak,
swimming,
migration,
cygnet,
teal,
lakeshore,
feather,
bill
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