New Hampshire wildlife officials say several more ducks have died since nearly two dozen of the wild birds were found dead in a storm runoff basin in Concord.
Conservation officers recovered 22 dead ducks Saturday from the oil-contaminated water at a housing development. Another four ducks were captured and taken to a wildlife rehabilitation center, but two have since died, along with another duck found walking in a driveway.
Officials are investigating how what appears to be motor oil ended up in the basin. Fish and Game Lt. Jim Juneau told the Concord Monitor that someone could have intentionally poured oil down a storm drain, or it could have leaked from a vehicle. He says thanks to the cleanup effort, the water quality is improving.