"Nycticorax olsoni" . "Ardeidae" . "Animalia" . . "Nycticorax olsoni Bourne W.P., Ashmole N.P. and Simmons K.L. 2003" . . . . . . "Ascension Night Heron" . . . "Chordata" . . . "Nycticorax" . "Ciconiiformes" . . "Bourne W.P., Ashmole N.P. and Simmons K.L. 2003" . . . "Aves" .