noun
: any of a number of chiefly No. American swallows (genus Petrochelidon ) that build their bottlelike nests of mud against cliffs or under eaves — called also eaves swallow
noun
: any of a number of chiefly No. American swallows (genus Petrochelidon ) that build their bottlelike nests of mud against cliffs or under eaves — called also eaves swallow
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012