They usually weigh around 21-30 pounds, tho the males can exceed 35 pounds. They have a wingspan of over 7 feet. Standing on the ground the Trumpeter Swan stands around 4 feet high.
Trumpeter Swans were identified in 1850 in Alaska. But they didn’t realize until 1954that they were breeding in Alaska. In 1968 the U. S. Fish and Wildlife Service counted 2,844 Trumpeters.
They were removed from the National Endangered Species List, but they are still classified as rare in some other states. The Census in 1990 resulted in a count of 13,000 Trumpeters in Alaska, which is considered to be 80% of the world’s Trumpeter Swan population, and it has continued to increase to this very day.
Swans mate for life…Usually when they are around 2 years old, but they do not breed until the third, forth or fifth year. When ready to breed they begin to nest in as early as the spring melt will permit in April
The female lays 2 to seven eggs, tho 4 is the average over a 5-12 day period. The female trumpeter (Pen) takes care of the nesting, her lifetime mate (Cob) watches over her and guards the nest.
They take turns incubating the eggs. It is during this time that the male (Cob) goes into molt, losing his wing feathers, rendering him flightless for approximately a month
There’s about 31-35 days of incubation before the baby Swans (Cygnets) hatch. The baby Swans (Cygnets) hatch in June and they weigh around 7 ounces and are grey in color when their feathers grow in. They turn white after their second molt, approximately 2 years.
Then for the next 11-15 weeks the swan pair guards their Cygnets until they have fledged (fly). Predators of the Cygnets are snapping turtles, Great Homed Owls, Mink, Raccoons, Coyotes, and Red Fox in the wild. It is during this time that the adult female (Pen) goes into molt losing her wing feathers and cannot fly for approximately a month.
In the summer months the Swans eat foliage, seeds and various marsh plants namely horsetail, pondweeds, sedge, bulrush, water milfoil, widgeon grass, and pond lily. They live up to their names with a deep French horn/Trumpet like sound when they call.
Recently, eggs from Alaskan Trumpeter Swans have been sent to several Midwestern states where restoration programs are establishing nesting Swans where they have not been seen in 100 years.
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