environmental
adult
america
animal
ardeidae
autumn
avian
background
beautiful
biodiversity
biology
bird
birding
birdwatching
butorides
butorides virescens
ciconiiformes
close
closeup
colorful
conservation
dam
detail
ecology
ecosystem
environment
estuary
fall
fauna
feather
green
green environment
green glossy feathers
green heron
green nature
habitat
hunt
hunter
hunting
juvenile
lake
little
marsh
maryland
natural
nature
north
north america
ornithology
pelecaniformes
perched
perching
plumage
poised
pond
pounce
predation
predatory
regal
riparian
riparian zone
river
small
spring
striated
summer
tense
virescens
water
wetlands
wild
wildlife
yellow legs