It gives us images and information in the wild and in aviculture on every species and subspecies of parrot

I have now put up the entries on the four blue macaws from the Lexicon of Parrots . This comprehensive work by Thomas Arndt featuring images and information in the wild and in aviculture on every species and subspecies of parrot first appeared in eight loose-leaf parts between 1990 and 1996.  Several years later it was updated and produced in CD format. It has just been updated again with new information from the field as well as taxonomic changes and this third version is available in DVD format. It is still the only work with photographic images of every species and subspecies of parrot, extant and extinct, as well as video footage. I have been involved from the outset in preparing the English language edition from the German original.