A man whose job was to maintain and care for the swans at a suburban condominium complex in Des Plaines, Illinois was killed yesterday in what appears to have been a freak attack by one or more of the birds, according to a report at KSDK.com.

Anthony Hensley, 37, paddled his kayak too close to the nest of a mother swan, who knocked the man from the boat and pursued him as he tried to swim for shore. Witnesses reported seeing two of the birds circling where Hensley went down for the last time.

Approximately 30 minutes after the attack began, Hensley's body was pulled from the water by police. The father of two was described by family members as healthy and athletic, but he was thrown into the water fully clothed and wearing boots.

It was his job to care for the swans at the Bay Colony Drive complex, which were brought in to keep away geese, whose nests and droppings were fouling edges of the pond where the attack took place.

Video, which aired Tuesday, April 17 on KSDK, is embedded below:

(image via shutterstock)