The Index entries on the right with hyperlinks are now available, those without are forthcoming. Finally, one more point needs to be made. Throughout the world, national taxonomy committees are working hard to define consistent bird species lists for their country or the wider area to which their country belongs. Obviously, their publications are an important source for the information presented here, as they indicate the experts' interpretation of the literature. It is for this reason that I had to be judge in certain cases.
More background is presented in the pages on splits.
Rolf A. de By Bolivian Spinetail Cranioleuca henricae , a species described from Bolivia in 1997. Photo Jon Hornbuckle. Illustrations in image and audio are presented here and there. I am indebted to the originators for allowing me to use their material. Sound samples are provided as mpeg layer-3 files in a .wav coat.