This ring can summon any species of dove or pigeon or dove at the rate of one per minute, up to twenty per day. They can carry out simple orders or deliver a message to a specific place or person within 100 miles. If spooked or injured, they flee. The pigeons serve until they die or dismissed.
The user can summon an entire flock of pigeons which can obscure the wearer or carry out one order. This disables the ring for a month.
Finally, the wearer can transform into a dove or pigeon, once, for as long as they choose.