Possible Clues:

• Cow, say, originally bleating like sheep?
• Like bison and buffalo
• Like Elsie
• (Like a) yak, for example
• Black sheep's description -- dull and stupid
• Beastly clinging at last
• Foremost of beasts like sheep – or like cattle
• Like some livestock
• Turns up, Russian flower produces grapes affecting Jersey
• Going by book, sheep-like, dull and stolid