animal

background

bird

bog

brown

clean

concept

duck

duckresting

duckweed

ecology

ecosystem

environment

europe

feather

fen

filter

footage

formal

garden

germany

green

grey

herb

innovation

innovative

lake

mallard

marshland

mire

nature

neutral

outdoor

park

people

planet

pollution

pond

pondweed

protection

pure

raw

real

recycle

research

resting

restingin

science

summer

sun

swamp

swimming

time

vegetation

water

waterfowl

wild

wildlife

world