MOUNT VERNON, Wash. (AP) — A trumpeter swan treated for suspected lead poisoning has been released back to the wild.

The swan was found January 17 when it became entangled in a fence and Mount Vernon Animal Control was called in.

The state Department of Fish and Game also was called in because trumpeter swans are a protected species.

The swan was taken to the Whatcom Humane Society after rescuers noticed it was wobbly and stumbling.

Lead poisoning is a common affliction for birds that ingest buckshot.

Mount Vernon police Lt. Chris Cammock says the swan was released back to the wild on Thursday after several weeks of treatment.