adult
america
anas
anatidae
animal
anseriformes
autumn
avian
background
beak
beautiful
biodiversity
biology
bird
calm
closeup
colorful
comical
conservation
cute
dabble
dabbling
detail
duck
ecology
ecosystem
environment
environmental
face
fall
fauna
feathers
female
fowl
glow
green
head
lake
light
mallard
maryland
nature
north
open
ornithology
peaceful
platyrhynchos
plumage
pond
profile
quack
resting
river
serene
summer
sun
vegetation
water
waterfowl
wetlands
wild
wildflowers
wildfowl
wildlife
zoology