英文關鍵字
bark
bird
brown
certhia
environment
estonian
eurasian
european
familiaris
food
for
forest
habitat
natural
passerine
pine
searching
small
songbird
tree
treecreeper
trees
trunk
wilderness
wildlife
woodland
英文關鍵字
bark
bird
brown
certhia
environment
estonian
eurasian
european
familiaris
food
for
forest
habitat
natural
passerine
pine
searching
small
songbird
tree
treecreeper
trees
trunk
wilderness
wildlife
woodland