A Florida sheriff has reportedly launched a death investigation after a large exotic bird -- bearing dagger-like claws -- attacked and killed its 75-year-old owner.

Marvin Hajos bred the cassowary, a huge flightless bird that resembles an emu, that eventually killed him after he fell on his farm Friday near Gainesville, authorities said.

The San Diego Zoo call the endangered cassowary, which stands up to 6-feet tall and has long claws, the world’s most dangerous bird.

Hajos’ death is being investigated by Alachua County Sheriff Sadie Darnell, the Gainesville Sun reports. He was identified Saturday.

BIG FLIGHTLESS BIRD KILLS ITS OWNER AFTER STUMBLE IN FLORIDA

“Initial information indicates that this was a tragic accident for Mr. Hajos and his family,” department spokesperson Lt. Brett Rhodenizer told the paper.

He said the cassowary that killed Hajos “remains secured on private property.”

The Sun reported speaking to a woman at the farm who said she was Hajos’ fiancé.

“He was doing what he loved,” she said in a brief interview.

CZECH MAN MAULED TO DEATH BY HIS PET LION

Cassowary owners need permits to own the birds under Florida law, the paper reported.

To obtain a permit, the Florida Fish and Wildlife Conservation Commission requires cassowary owners to have "substantial experience" and meet specific cage requirements, spokeswoman Karen Parker told the newspaper.

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She said the commission lists the cassowary as a type of wildlife that can "pose a danger to people."