What is a large group of bees on the move called?

A large armada crossed the English Channel to invade the beaches of which region on June 6, 1944? A large bay bearing its name borders which capital city, settled by the Spanish in 1571? Which large breakfast cereal producer has the stock ticker GIS? A large crater on Saturn's moon Mimas is named for which British astronomer who discovered the moon in 1789? What is a large-eyed needle used to mend holes in socks called? What word describes a large, showy feather, often worn as an ornament on a hat or helmet? What is a large fire built for a funeral cremation called? Complete the nickname of a large long-range German cannon of World War I: "Big ___".