(Thamnophilidae; Ϯ Lunulated Antbird O. lunulatus) John Patton O'Neill (b. 1942) US ornithologist, field-worker, bird artist; Gr. ορνις ornis, ορνιθος ornithos bird; "Oneillornis new genus Type species. — Pithys lunulata Sclater and Salvin 1873. ... Etymology.— We are pleased to name this genus for our friend and colleague John Patton O'Neill, whose pioneering field work in South America led to the discovery of dozens of new avian species and helped propel the Louisiana State University Museum of Natural Science into becoming one of the great ornithology collections in the world, whose paintings grace our lives and provide keys for field study, and, especially, whose intense love of ornithological exploration and appreciation for the value of museum specimens has been passed on to a multitude of students, one by one, for five decades. The name Oneillornis is masculine in gender" (Isler et al. 2014).