"Cowman, Milk Your Cow" is a 1967 song by Adam Faith written by the Bee Gees' Barry and Robin Gibb.
The backing band are The Roulettes, according to the notes on The Two Best Sides of Adam Faith, an LP collection on the EMI Records.
According to the liner notes on Bee Gees Songbook (CD) the guitar is played by Peter Green of Fleetwood Mac.
[3] The song was recorded in August 1967 inside a little studio in Denmark Street[2] Faith talk about "Cowman, Milk Your Cow": I think ['Cowman'] came to me through one of The Roulettes my backing group at the time.
[2]Barry agreed with Faith's opinion that the Gibbs were a hard act to follow vocally.