英文關鍵字
america
american
animal
animals
baby
bison
bovidae
bovine
brown
buffalo
calf
cattle
communication
cow
cute
drinking
environment
female
field
grass
grassland
green
herbivore
hole
horns
lighting
mammal
meadow
mother
mud
natural
nature
powerful
real
southwest
summer
time
ungulates
usa
utah
water
west
western
wild
wildlife