hirundo nigricans Hirundo • hirundo pyrrhonota · · · Info · Definitions · Synonyms · Characters · · hirundo nigricans · · Text Common · · Latin · · Scripts 17 · · Length 6 · · Syllables Definitions · · · (noun) of Australia and Polynesia; nests in tree cavities. Synonyms: tree swallow, tree martin, Hirundo nigricans. · · Noun Definition 1 Synonyms · · · tree swallow · · Synonym 1 tree martin · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075