KSDK -- The Missouri Wildlife Commission arrested two people suspected of shooting two trumpeter swans.
View photos of the swans
The birds were shot with shotgun pellets on Friday in Winfield.
Other duck hunters in Winfield contacted the Missouri Wildlife Commission about the shooting.
The birds were being treated at the World Bird Sanctuary in Valley Park. The female bird will have surgery on Tuesday. The male bird was not expected to have surgery. Treatment for the birds was estimated to cost between $7,000 and $10,000.
Officials were hopeful the birds may be rereleased into the wild in six to 10 weeks depending on how the surgery and recovery goes.
Trumpeter swans mate for life and officials suspect the birds were a couple.
There were 1,000 trumpeter swans left in the wild. They are the largest flying birds in the U.S.