Related Clues:

• Farmyard call
• Sound you might hear a lot if you live on a farm
• Sound in a roundup
• Sound at a petting zoo
• Low, though not the lowest in humour
• Low note?
• ___-cow
• 'Hey, ewe!'
• __ juice: milk
• Call on a dairy farm
• Cow's remark
• Sound from a sheep
• 'The sheep says ...' response, on a See 'n Say
• Stock report?
• Call from the pasture