| perisoreus | (n) Canada jays, Syn. genus Perisoreus |
| canada jay | (n) a jay of northern North America with black-capped head and no crest; noted for boldness in thievery, Syn. gray jay, grey jay, Perisoreus canadensis, whisker jack, camp robber |
| rocky mountain jay | (n) a Canada jay with a white head; widely distributed from Montana to Arizona, Syn. Perisoreus canadensis capitalis |