At least three and possibly up to 15 birds have died of avian flu at two New York City zoos, according to the organization that operates the facilities. The Wildlife Conservation Society said three ducks at the Queens Zoo died after contracting the virus,

The nationwide bird flu outbreak has hit two New York City zoos amid growing concern about the virus dangers and a sharp rise in egg prices. NBC News' Shaquille Brewster reports.

New avian flu cases hit New York zoos killing at least 15 birds - The zoo deaths come after a statewide order to temporarily close bird markets