PERISOREUS

(Corvidae; Ϯ Grey Jay P. canadensis) Bonaparte 1831, considered the Grey Jay and the Siberian Jay P. infaustus allied to the nutcrackers Nucifraga and analogous to the tits Parus, and the name perhaps reflects their habit of hoarding acorns and other food  < Gr. περισωρευω perisōreuō  to heap up, bury beneath. However, Coues 1882, suggested the derivation L. peri-  very, exceedingly, and sorix, bird of augury dedicated to Saturn, the god originally placated by human sacrifice (v. infaustus), and this seems to have been reinforced by Bonaparte 1831: “Perisoreus; Nob. (*).  ...  (*) Credo bene d’istituire questo sottogenere affine alle Nucifraghe pel Corvus infaustus di Siberia, il C. canadensis d’America, ed una nuova specie Artico-Americana anche più aberrante (e per conséguenza atta a servir di tipo) totalmente cinerea. Questo nuovo gruppo offre una decisa analogia colle Cinciallegre (Parus).”; "Perisoreus Bonaparte, 1831, Giorn. Arcadico, 49, p. 42. Type, by subsequent designation (Gray, 1840, List Gen. Birds, p. 37), Corvus canadensis Linnaeus." (Blake & Vaurie in Peters 1962, XV, 235).  
Var. Perisorius.   
Synon. Boanerges, Dysornithia.

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Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com on 17 November 2018).