Most mourning doves migrate along flyways over land. On rare occasions, mourning doves have been seen flying over the Gulf of Mexico, but this appears to be exceptional. Mourning doves (Z. m. carolinensis) are native to the North Atlantic archipelago of Bermuda, approximately 1,044 km (649 mi) east-southeast of Cape Hatteras, North Carolina (the nearest landfall); 1,236 km (768 mi) south of Cape Sable Island, Nova Scotia; and 1,538 km (956 mi) due north of the British Virgin Islands, from which they had been migratory, but since the 1950s have become year-round residents.
The blue jay occurs from southern Canada (including the southern areas of provinces from Alberta eastward to Quebec and throughout the Atlantic provinces) and throughout the eastern and central United States south to Florida and northeastern Texas. The western edge of the range stops where the arid pine forest and scrub habitat of the closely related Steller’s jay (C. stelleri) begins, generally in the eastern foothills of the Rocky Mountains. Recently, the range of the blue jay has extended northwestwards so that it is now a rare but regularly seen winter visitor along the northern US and southern Canadian Pacific Coast.