On my first Camino, I walked for a bit with a peregrina who brought her donkey. Just after Zubiri, the donkey came to its senses and decided it didn’t want to walk any more. She was able to coax the donkey to the nearest town, where she rented a horse trailer and they went home.
*sigh*
Later on that same Camino, I saw a pilgrim who was walking with a chicken in his pack.
Yes, it was alive.
It had a little string on its leg so it could get out and walk, yet not wander off when it was time to hit the road again.
Perhaps that’s why the chicken crossed the road?