An in-depth hummingbird monograph is a glaring ommission from the public domain at the moment. Helm have given the go-ahead to now produce such a book, replete with full colour plates depicting all the species and subspecies and supplemented with photos in a full-on monograph typical of the Helm stable.
Now the only fly-in-the-ointment is covering artwork costs; Helm can cover a certain percentage so following a lead from a couple of other publications we feel that sponsorship for the remaining art is the way forward. This can be done either on a per species basis or on a per plate basis, dependent on which way garners the most interest. The sponsor would then obviously keep the original artwork after the book is published.
This is the only way that a book of this kind can be done nowadays and, as everyone agrees, artwork still has the upper hand over photos and would prefer the mix of both in a monograph as in Cotingas, Wagtails etc.