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The mute swan is also one of the sacred birds of Apollo, whose associations stem both from the nature of the bird as a symbol of light, as well as the notion of a "swan song". The god is often depicted riding a chariot pulled by or composed of swans in his ascension from Delos .
Lund noted that the common plural nouns for animals were "flock" for birds and "herd" for cows, conceding that for certain animals in small groups, there was currency in usage such as a "pod" of whales or "gaggle" of geese. [121]
Trumpeter swan pair in Riverlands Migratory Bird Sanctuary. Trumpeter swan courtship in Seedskadee National Wildlife Refuge. Like other swans, trumpeter swans often mate for life, and both parents participate in raising their young, but primarily the female incubates the eggs. Most pair bonds are formed when swans are 5 to 7 years old, although ...
Mute swans can achieve speeds in flight of up to 88.5 km/h (55 mph), and during take off achieve speeds of around 48 km/h (30 mph) when running to gain lift. [21] Young birds, called cygnets, are not the bright white of mature adults, and their bill is dull greyish-black, not orange, for the first year.
Bird ringing is the term used in the UK and in some other parts of Europe, while the term bird banding is more often used in the U.S. and Australia. [49] bird strike The impact of a bird or birds with an airplane in flight. [50] body down The layer of small, fluffy down feathers that lie underneath the outer contour feathers on a bird's body. [51]
The coscoroba swan is a medium-large sized waterfowl, but smaller than the true swans, at 90 to 115 cm (35 to 45 in) long with a wingspan of about 155 cm (61 in). Males weigh 3.8 to 5.4 kg (8.4 to 12 lb) and females 3.1 to 4.5 kg (6.8 to 9.9 lb).
Woodcut by Robert Elliot Bewick of the swan named in memory of his father by William Yarrell. 1847 edition of Thomas Bewick's A History of British Birds.. C. columbianus is the smallest of the Holarctic swans, at 115–150 cm (45–59 in) in length, 168–211 cm (66–83 in) in wingspan and a weight range of 3.4–9.6 kg (7.5–21.2 lb).
In comparison, swans that did not signal were only able to create a following 35% of the time. [10] In most cases, the whooper swan in the flock that makes the most movements (head bobs) is also the swan that initiates the flight of the flock – this initiator swan can be either male or female, but is more likely to be a parent than a cygnet. [10]