A cassowary - an emu-like giant bird with sharp claws - killed its owner in the backyard of his home in Gainesville, Florida on April 12.
Alachua County sheriff's deputies said the bird's owner, Marvin Hajos, 75, was breeding the rare birds, which are native to New Guinea and Australia and considered the "world's most risky birds", WCJB reported.
The bird remains on Hajos' property as authorities look into the attack, reports from CNN stated.
According to reports, the man fell, and the cassowary "attacked him". The Alachua County Fire Rescue Department told the Gainesville Sun that a cassowary killed the man Friday on his property near Gainesville, likely using its long claws.
When sheriff's deputies arrived they realized how serious the situation was, as the bird was a cassowary, a large and often aggressive species native to Australia. Hajos was allegedly breeding the flightless Australian birds, according to state wildlife officials.
"Initial information indicates that this was a tragic accident for Mr. Hajos", said Lt. Brett Rhodenizer, a sheriff's office spokesman, in an email to the paper.
Hajos was transported to UF Health Shands Hospital, where he later succumbed to his injuries. Females can weigh up to 167 pounds, and males 121 pounds, making it the heaviest bird in the world after the ostrich, to which it is related.
The San Diego Zoo says that they're skilled swimmers, which helps them fend off threats.
The San Diego Zoo's website calls the cassowary the "world's most unsafe bird" with a four-inch, "dagger-like" claw on each foot. It can slice open its predators with a swift kick, according to the San Diego Zoo website.
To obtain a mandatory 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.