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 salad from supermarket delis. In the Philippines, macaroni salad has a mildly sweet flavor. It is commonly consumed during holidays such as Christmas and New Years day. A common variant adds shredded chicken and is known as chicken salad or chicken macaroni salad. It is served at parties and gatherings. In the United States, macaroni salad has been described as a "deli staple". In Hawaii, macaroni salad is a popular staple in plate lunches. In Puerto Rico macaroni salad may contain mayonnaise, mustard, canned tuna or bits of Spam, onions, Cubanelle peppers and pimentos. Macaroni salad Macaroni salad is a type