Collies usually round up sheep not each other... but as the eyes of her blind canine companion, little Bonnie steers Clyde away from trouble.
The five-year-old long-haired border collie, who has lost his sight because of a degenerative disease, relies entirely on Bonnie as his guide dog. He follows her everywhere.
And like the American gangster lovers they have been named after, the friendly dogs are on the lookout for a safe, new hideaway.
They were recently dumped in the street during a storm and are currently being cared for at Meadow Green Dog Rescue Centre in Hales Green, near Loddon in Norfolk.
The centre's Cherie Cootes said: "If Clyde's unsure where he is, he will suddenly go behind Bonnie and put his face on the back of her so she can guide him. He totally relies on her.
"And when she walks she tends to stop and make sure he's there - she does look out for him. When she's about you wouldn't notice he is blind, but when she's not about he refuses to move. There's no option of homing them separately. They've got to go as a pair."
A driver found the dogs running through Blundeston, near Lowestoft, Suffolk, during a storm three weeks ago. Neither Clyde nor Bonnie - a short-haired border collie aged two or three - had identifying collars or chips.
Cherie, 40, added: "They've got very nice manners and they walk well on the lead.
"They really are a very sweet pair of dogs."
If you can give Bonnie and Clyde a home, call the centre on 01508 548 216.