According to CBS News, Lee Purdy, a UPS driver, was delivering packages in Clackamas, Oregon, on Monday when he heard what he believed to be a woman screaming from inside a house.
Worried and slightly confused, Mr Purdy called his wife to discuss what he should do next.
When she suggested calling 911, he admitted he wasn't sure the voice belonged to a human. But his wife called 911 anyway, just to be sure.
"It was clearly weighing on him, so she thought she'd better call," Sergeant Brian Jensen, public information officer for the Clackamas County Sheriff's Office, told CBS News.
A police officer, upon entering the house, discovered the screams were coming from Diego the parrot - who was, fortunately, "uninjured and in no need of police assistance."
"Sure enough it was Diego the parrot yelling for help," Sergeant Jensen told Today. "Nobody was in distress. Diego was fine."
Diego's owner, Susan Baird, told Today that Diego often squawks "Help me" when she is away (as she was on Monday) and the bird is feeling lonely.
Fortunately, the cops seem to have a sense of humour about the odd situation.
"We're just glad that no one, including the bird, actually needed any help," CBS News quoted Mr Jensen as saying.
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