VIRGINIA BEACH -- Six additional birds have been injured by blow darts, bringing the total to 16.
SPCA Wildlife Specialist Barbara Gipson tells 13News Now some of the birds, mostly Canada Geese and gulls, have been injured severely. One bird did not survive because of an infection caused by the dart.
"Removing the darts carefully is critical and starting antibiotics immediately has been how we were able to save so many of these birds," Gipson said.
They've been unable to tell where the shooting is actually taking place, but many of the birds have been found near the Lesner Bridge.
Injuring a bird is a federal crime and nobody is currently in custody.
"Hopefully people will call if they have any information on who is doing this," Gipson said. "In years past we have only had one or two birds shot with these blow darts. This year we are over ten."
U.S. Fish and Wildlife Service has assigned a special agent to the investigation.
PETA is offering up to $5,000 for information leading to the arrest and conviction of the person or persons responsible for the crimes.
Gipson says witnesses have contacted authorities but nobody has been charged.
Anyone with information is asked to call the Virginia Beach SPCA Wildlife Referral Line at 757-263-4762.