浜辺
environmental
america
american
animal
argentatus
aves
avian
background
bay
beautiful
biodiversity
biology
bird
birding
blue sky
calm
charadriiformes
choptank
choptank river
closeup
colorful
conservation
detail
east coast
ecology
ecosystem
environment
face closeup
fauna
feathers
fresh
gray
grey
gull
herring
lake
large
laridea
larus
light
marina
marsh
maryland
mid atlantic states
migrant
migration
molt
morning
moult
natural
nature
north
north america
ocean
ornithology
outdoors
ozone
peaceful
plumage
portrait
profile
river
scavenger
sea
serene
smithsonian
smithsonianus
urban
urban wildlife
wetlands
wild
wild animal
wild bird
wildlife
winter
zoology