Bubulcus ibis is a species of heron (family Ardeidae) found in the tropics, subtropics and warm temperate zones.

plural of western marsh harrier

Circus aeruginosus, a large harrier, a bird of prey from temperate and subtropical western Eurasia and adjacent Africa.

Phylloscopus bonelli, a species in the Phylloscopus genus of warblers.

plural of western olivaceous warbler

Iduna opaca, an Old World warbler.

Choristoneura freemani, a moth that is destructive to coniferous forests in western North America.

plural of western spruce budworm

plural of western poison oak

A vine or small shrub native to western North America, Toxicodendron diversilobum, which exudes a toxic oil containing urushiol that causes a skin rash.