Macaroni penguin been considered separate species, but the close similarities of their DNA sequences has led some, such as the Australian ornithologists Les Christidis and Walter Boles, to treat the royal as a subspecies of the macaroni. The two species are very similar in appearance; the royal penguin has a white face instead of the usually black face of the macaroni. Interbreeding with the Indo-Pacific subspecies of the southern rockhopper penguin ("E. chrysocome filholi") has been reported at Heard and Marion Islands, with three hybrids recorded there by a 1987–88 Australian National Antarctic Research Expedition. The macaroni penguin is a large, crested
Macaroni casserole According to a survey conducted in 2010 with 1,100 respondents, it is the second most popular everyday dish for dinner in Finland. Nowadays the dish most commonly made with minced meat, but is traditionally not made with cheese. However, originally the Finnish macaroni casserole was not made with meat. When prepared without meat it was often used as a replacement for potatoes in the meal and later on, it became a part of the dish that is known today. Macaroni casseroles are readily available in Finnish grocery stores as pre-packaged meals. In Sweden, the dish is called "makaronipudding" or "makaronilåda".