Thirty seven trematode species are described from twenty six separate bird hosts. Six new species as well as six undetermined species are included. A new genus, Xenisma, is proposed for a new species belonging to the isolated genera of the family Echinostomatidae. The six new species are: Parastrigea neorobusta, Cotylurus mcleodi, Stephanoprora lari, Xenisma wardlei, Echinostoma platyrhynchi, and Echinostoma manitobensis. The undetermined species are: Mesostephanus sp., Plagiorchis sp. 1, Plagiorchis sp. 2, Astiotrema sp., Hindia sp., and Haematrotrephus sp.