Puffin are closely related, together composing the subfamily Fraterculini. The scientific name "Fratercula" is derived from Latin and means "little brother", a reference to the black and white plumage, which resembles monastic robes. The English name "puffin" – puffed in the sense of swollen – was originally applied to the fatty, salted meat of young birds of the unrelated Manx shearwater ("Puffinus puffinus"), formerly known as the "Manks puffin". Puffin is an Anglo-Norman word (Middle English "pophyn" or "poffin") for the cured carcasses of nestling Manx shearwaters. The oldest alcid fossil is "Hydrotherikornis" from Oregon dating to the Late Eocene while
Diego Garcia Other nesting native birds include red-tailed tropicbirds ("Phaethon rubricauda"), wedge-tailed shearwaters ("Puffinus pacificus"), Audubon's shearwater ("Puffinus iherminierii"), black-naped terns ("Sterna sumatrana"), white (or fairy) terns ("Gygis alba"), striated herons ("Butorides striatus"), and white-breasted waterhens ("Amaurornis phoenicurus"). The 680-hectare Barton Point Nature Reserve was identified as an Important Bird Area for its large breeding colony of red-footed boobies. The island hosts introduced bird species from many regions, including cattle egrets ("Bubulcus ibis"), Indian barred ground dove, also called the zebra dove ("Geopelia striata"), turtle dove ("Nesoenas picturata"), Indian mynah ("Acridotheres tristis"), Madagascar fody ("Foudia madagascariensis"), and chickens ("Gallus gallus"). Currently, three