A female swan is called a pen. Its male partner is called a cob. The pen's offspring that is one year or younger is called a cygnet.
A pen usually breeds in late April to the beginning of May. She lays a white egg every other day until it totals between five to nine eggs. While she incubates them for over 30 days, the cob defends the nest against possible predators. The newly born cygnets take to the water after one to two days. The cygnets' initial foods consist mainly of invertebrates and plants. Growing rather fast, they become fully feathered when they are nine to 10 weeks old and start flying once they are around 15 weeks old.Learn More
Some Canada geese spend their winter in the southern United States or Mexico, while others are permanent residents of golf courses and parks in the United States. Many Canada geese do not fly as far south as they once did due to changes in weather and farming patterns.Full Answer >
Roseate spoonbills can be identified by their pink coloring, their long, flat, spoon-shaped bills, their bald heads, and their reddish legs. They are heron-like birds and have a distinctive call that can be identified and used to track them. Their overall coloration varies, but adults typically have a greenish head, a white neck, a gray bill, and deep pink feathers.Full Answer >
Domestic ducks can eat chicken layer feed supplemented with brewer's yeast. Adding 5 percent brewer's yeast to chicken feed helps provide ducks with the right amount of niacin to grow properly. Ducks can also eat commercial-quality duck feed if it is available.Full Answer >
Pelagornis sandersi was the biggest flying bird in the world. Discovered in 1983 near Charleston, S.C., the bird lived some 25 to 28 million years ago and had an estimated wingspan of 20 to 24 feet. It overtakes the previous record holder, Argentavis magnificens, which had a 3-meter wingspan.Full Answer >