野牛 is read as やぎゅう (yagyuu) and means buffalo.
やぎゅう
yagyuu
あめりかやぎゅう
American bison (Bison bison)
の
hidden (structural) member
や
やがい
fields
やしん
ambition
やせい
I
やけん
stray dog
のなか
in the middle of a field
やしゅ
fielder
のやま
hills and fields
やちょう
wild bird
やじん
Yeren