Macaroni penguin well as vocal, displays. These behaviours peak early in the breeding period, and colonies particularly quieten when the male macaroni penguins are at sea. Agonistic displays are those which are intended to confront or drive off or, alternatively, appease and avoid conflict with other individuals. Macaroni penguins, particularly those on adjacent nests, may engage in 'bill-jousting'; birds lock bills and wrestle, each trying to unseat the other, as well as batter with flippers and peck or strike its opponent's nape. Submissive displays include the 'slender walk', where birds move through the colony with feathers flattened, flippers moved to the front
Macaroni and cheese while "shells and cheese" is sometimes used when it is made with Conchiglie. While Cheddar cheese is most commonly used for macaroni and cheese, other cheeses may also be used—usually sharp in flavor—and two or more cheeses can be combined. Popular recipes include using Gruyere, Gouda, Havarti, and Parmesan cheese. Macaroni and cheese can be made by simply layering slices of cheese and pasta (often with butter and/or evaporated milk) then baking in a casserole, rather than preparing as a cheese sauce. Also, some like to include a crunchy topping to their baked macaroni and cheese by topping it off