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Thayer’s Gull is now recognized by the AOS as a subspecies of Iceland Gull

The results of the AOS meeting are in: Thayer’s Gull is now considered a subspecies of Iceland Gull, rather than its own species. There are other changes too, such as a new species of Red Crossbill. For eBird users, these changes will be reflected in August, when eBird taxonomy is fully updated. Continue reading Thayer’s Gull is now recognized by the AOS as a subspecies of Iceland Gull →