Roast Peking duck restaurants have seen a sharp drop in business because of the ongoing bird flu scare.

DaDong Food & Beverage Investment Co Ltd has seen its business fall 15 percent since the bird flu outbreak last month, said Dong Zhenxiang, Da Dong Peking Roast Duck Restaurant owner.

But he said the restaurants are not worried because duck dishes are only part of the menu, and the reduction of orders for duck will not affect their business on a large scale.