From publisher blurb:
Giant tortoises, atrociraptors, bats, boat swans, cockatrices, emus, snakes, vultures . . . sauropsida (and sauropsida-like creatures) of all kinds to fill out your OSR bestiary. Is Toad, Giant really sufficient for your squat amphibian needs?
Contains 88 specific animals, a table for quickly estimating avian, lizard, snake, turtle, and toad statistics based on animal weight, and a small selection of rules and conversion notes for using the book.
About a Wretched Menagerie: Written in a compact (some would say cramped) style with minimal fuss and no art, each manuscript in this series covers a narrow niche of creatures. Tools for estimating statistics based on size and ferocity, rationalized statistics for a wide variety of real world (and fantastical) creatures within the niche, and a small selection of extra rules will be standard for each.