Tennants of Leyburn expect the hammer to fall at between £15,000 and £20,000 on John Gould's self-published A Monograph of the Trogonidae or Family of Trogons which contains 47 hand-coloured lithographic plates.
Also in the sale on September 29 are Morris' British Game Birds and Wildfowl (with 60 hand-coloured plates), for which the pre-sale estimate is £250 - £350, and Volumes 1 - 10 in Collins' New Naturalist Series which is expected to fetch between £80 and £120.
Tennants can be contacted at 01969 623780 or enquiry@tennants-ltd.co.uk