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Guillemot
Guillemots is the common name for several species of seabird in the auk family (part of the order Charadriiformes). In British use, the term comprises two genera: ''Uria'' and ''Cepphus''. In North America the ''Uria'' species are called "murres" and only the ''Cepphus'' species are called "guillemots". This word of French origin apparently derives from a form of the name William, cf. (フランス語:Guillaume).〔"Guillemot, n., etymology of" ''(The Oxford English Dictionary )''. 2nd ed. 1989. OED Online. Oxford University Press. Accessed Dec 17, 2007〕
The two living species of ''Uria'', together with the razorbill, dovekie and the extinct great auk, make up the tribe Alcini. They have distinctly white bellies, thicker and longer bills than ''Cepphus'', and form very dense colonies on cliffs during the reproductive season.
The three living species of ''Cepphus'' form a tribe of their own: Cepphini. They are smaller than the ''Uria'' species and have black bellies, rounder heads and bright red feet.
In July 2013, Dr Steven Portugal from the Royal Veterinary College demonstrated that when water touches the eggs, it forms into droplets rather than running off; in other words, guillemot eggs are water-repellant and self-cleaning.
==Systematics==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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