Definition of "avifaunal" [avifaunal]

• Of or pertaining to avifauna. (adjective)

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• "This ecoregion supports a high avifaunal diversity, and provides important habitat to a range of wetland birds."
• "Dutch avifaunal list: species concepts, taxonomic stability, and taxonomic changes in 1998."
• "Due to geographic proximity and avifaunal affinity, the Ogasawaras and Iwo Islands groups were lumped into the one Ogasawara ecoregion."