According to reports in the Brazilian press, the bird had been taught to alert criminals to police operations in Vila Irmã Dulce, a low-income community in the sun-scorched capital of Piauí state, by shouting: "Mum, the police!"
"He must have been trained for this", one policeman said, according to The Guardian.
This caused the couple's defense attorney to cast some doubt on police's version of events.
"The police said that when they arrived the parrot started shouting "the police arrived", the 'police arrived".
She questioned how a bird accused of loudly tipping off law enforcement for drug dealers could remain totally quiet in the police station.
"So far it hasn't made a sound ... completely silent", the reporter said.
The parrot will be taken to a zoo where it will spend three months learning to fly before it is released.
It seems the obedient parrot has since learned to keep his beak closed, not uttering a word to local police despite dozens trying to get the bird to talk.
In 2010, a parrot in Colombia named Lorenzo made global headlines after police recorded him warning his owners to run in Spanish at the sight of police officers approaching.
The parrot was apparently an animal that played lookout for two crack-dealing suspects.
In 2008 police seized two alligators during a raid that police believed had been used by local gangsters to eat the bodies of their enemies.