autumn
beaver
biocenosis
boreal
branches
bushes
clear
climate
dam
day
duckweed
ecology
environment
fall
fallen
flooded
flooding
forest
golden
lake
landscape
leaf
leaves
melancholy
mud
northern
park
pond
puddle
rainy
reflection
resources
river
sad
season
stream
surface
swamp
temperate
water
weather
wetlands
woodlands
yellow