[ gwuh-nahy; Spanish gwah-nahy ]
/ gwəˈnaɪ; Spanish gwɑˈnaɪ /

noun, plural gua·nay·es [gwuh-nahy-eys; Spanish gwah-nah-yes] /gwəˈnaɪ eɪs; Spanish gwɑˈnɑ yɛs/, gua·nays.

a cormorant, Phalacrocorax bougainvillii, of islands off the coasts of Peru and Chile, a chief source of guano.

Origin of guanay

1855–60; < American Spanish guanae, apparently as back formation from colonial Spanish huanaes, as plural of huano guano, taken as the name of the bird that produced it
Also called guanay cormorant. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019