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Trumpeter swans feed while swimming, sometimes up-ending or dabbling to reach submerged food. They will also dig into muddy substrates underwater to extract roots and tubers. They often feed at night as well as by day.
8 lis 2023 · An adult trumpeter swan eats around 8-10 lbs of submerged vegetation per day. They spend 4-8 hours foraging daily, especially during summer and fall when preparing for migration. The cygnets start with just 75-100g of food per day, fed by their parents.
The trumpeter swan (Cygnus buccinator) is a species of swan found in North America. The heaviest living bird native to North America, it is also the largest extant species of waterfowl, with a wingspan of 185 to 304.8 cm (6 ft 2 in to 10 ft 2 in).
Look for them in shallow ponds, lakes, rivers, and marshes. During migration and winter, you may also find Trumpeter Swans feeding in harvested agricultural fields. Trumpeter Swans are impressively large—males average over 26 pounds, making them North America’s heaviest flying bird.
Mostly plant material. Adults eat mainly stems, leaves, and roots of aquatic plants, including pondweed, sedges, rushes, arrowleaf, wild celery, bulrush, burreed, and many others. May eat terrestrial grasses and waste crops in winter. Young eat many insects and other small invertebrates, mainly during first 2 weeks after hatching.
10 lut 2024 · Although they are mainly herbivorous, Trumpeter Swans occasionally consume small fish and fish eggs as a supplement to their diet. This behavior is more common among adult swans and is believed to provide them with essential nutrients and variety.
Diet of the Trumpeter Swan. Adult swans are primarily herbivores, though young swans, known as “cygnets,” eat more invertebrates. They eat a variety of leaves, shoots, stems, roots, tubers, and grasses. Some of their favorite species are pondweed, duck potato, horsetail, and sedge.
