Illustration of a Saddleback, Philesturnus carunculatus. This is from a public domain image posted by the Biodiversity Heritage Library. I enhanced the contrast to see what could be done with the original scan, which was very flat.
From Buller's Birds of New Zealand: North Island Ko-kako, Callaeas cinerea wilsoni (left) and South Island Ko-kako, Callaeas cinerea cinerea (right--likely extinct). Some sources give the species name as "cinera", others as "cinereus".