英文關鍵字
bull
elk
checking
surroundings
wild
woodlands
winter
antler
warm
snow
ecology
white
northern
cold
head
fur
autumn
stag
woods
deer
yellowstone
majestic
roe
forest
mammal
antlers
nature
buck
brown
wildlife
resist
doe
male
rut
park
animal
strong
early
fauna
native
hoofed
ruminant
herbivore
antlered
american
americana
north
usa
safari
cow
grazing
new
world
cautiously