Île des Pingouins eroded by the sea, steep-sided, 4 km long and 1 km wide. Its surrounding coastal cliffs vary from 50 m to 300 m in height, making it virtually inaccessible by sea and rarely visited. It is free of introduced species, so has a relatively pristine biota compared with the other islands in the archipelago. At least 29 bird species breed on the island, which has been identified by BirdLife International as an Important Bird Area (IBA). It has an exceptionally high density of seabirds, including a million pairs of macaroni penguins, 300 pairs of black-browed albatrosses, four pairs of Salvin's
Macaroni and cheese has remained popular in the United States. A recipe called "macaroni and cheese" appeared in the 1824 cookbook "The Virginia Housewife" written by Mary Randolph. Randolph's recipe had three ingredients: macaroni, cheese, and butter, layered together and baked in a hot oven. The cookbook was the most influential cookbook of the 19th century, according to culinary historian Karen Hess. Similar recipes for macaroni and cheese occur in the 1852 "Hand-book of Useful Arts", and the 1861 "Godey's Lady's Book". By the mid-1880s, cookbooks as far west as Kansas and Festus, Missouri, included recipes for macaroni and cheese casseroles. Factory production