Tundra swans are currently migrating. As medium-distance migrants, they make their journey from their Arctic breeding grounds in mid-September. This annual migration is a remarkable spectacle as these elegant birds embark on a journey to their wintering grounds.
During the breeding season, tundra swans nest in the Arctic tundra, where they build their nests on open ground near bodies of water. Once their chicks have hatched and grown, the swans begin their migration southwards in search of more favorable conditions for the winter.
The exact routes and destinations of tundra swans during migration can vary slightly depending on their breeding location. Birds breeding in western Alaska, for example, typically move to estuaries along the Pacific coast, spanning from Vancouver Island down to northern California. These coastal areas provide abundant food resources, such as eelgrass and aquatic invertebrates, which the swans feed on during the winter months.
In addition to coastal sites, tundra swans also migrate to inland locations for the winter. From southern Idaho to the southern Colorado River, there are various inland sites where these birds can be found. These areas often include wetlands, marshes, and agricultural fields that offer suitable foraging habitats for the swans.
Migration is an incredible feat for these birds, as they cover considerable distances to reach their wintering grounds. It is believed that tundra swans navigate using a combination of celestial cues, landmarks, and magnetic fields. This innate ability allows them to find their way across vast landscapes, sometimes returning to the same wintering sites year after year.
Personally, I have had the privilege of witnessing tundra swan migration in the past. I remember standing on the shores of a coastal estuary, surrounded by the calls of these magnificent birds as they flew overhead in V-shaped formations. It was a truly awe-inspiring experience to see them in flight, their pure white feathers contrasting against the blue sky.
During migration, tundra swans often fly in large flocks, creating a spectacle that captures the imagination of birdwatchers and nature enthusiasts alike. Their graceful movements and haunting calls add to the sense of wonder and excitement during this time of year.
Tundra swans are currently migrating from their Arctic breeding grounds to their wintering grounds. They can be found in coastal estuaries along the Pacific coast, as well as inland sites from southern Idaho to the southern Colorado River. Migration is a natural and awe-inspiring phenomenon, showcasing the remarkable abilities of these birds to navigate vast distances and adapt to changing seasons.