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Mute swans usually hiss at competitors or intruders trying to enter their territory. [31] The most familiar sound associated with mute swans is the vibrant throbbing of the wings in flight which is unique to the species and can be heard from a range of 1 to 2 km (0.6 to 1 mi), indicating its value as a contact sound between birds in flight. [23]
Swans usually mate for life, although separation sometimes occurs, particularly following nesting failure, and if a mate dies, the remaining swan will take up with another. The number of eggs in each clutch ranges from three to eight. [5] An adult mute swan (Cygnus olor) with cygnets in Vrelo Bosne, Sarajevo, Bosnia and Herzegovina
Juvenile at the Cincinnati Zoo Its black bill is useful in distinguishing the trumpeter swan from the introduced mute swan. [13] Plate 406 of the Birds of America by John James Audubon, depicting the trumpeter swan. The trumpeter swan is the largest extant species of waterfowl, and both the heaviest and longest native bird of North America.
Cygnus falconeri is an extinct, very large swan known from Middle Pleistocene-aged deposits from Malta and Sicily. Its dimensions are described as exceeding those of the living mute swan by one-third, [2] which would give a bill-to-tail length of about 190–210 cm (75–83 in) (based on 145–160 cm for C. olor [3]). By comparison to the bones ...
Swans in the main bay at Abbotsbury. Abbotsbury Swannery is a colony of nesting mute swans near the village of Abbotsbury in Dorset, England.Located on a 1-hectare (2-acre) site around the Fleet Lagoon protected from the weather of Lyme Bay by Chesil Beach, it is the only managed swannery in the world, and can number over 600 swans with around 150 pairs.
Swan Lifeline was the primary statistical source for Perrin's (et al) paper on The Impact of Lost and Discarded Fishing Line and Tackle on Mute Swans (2002) [11] Notable rescues include a swan that landed on the roof of the number 19a Little Orange bus in Reading , Berkshire on 17 February 2023.
The ducks, geese, and swans are small- to large-sized birds with a broad and elongated general body plan. [2] Diving species vary from this in being rounder. Extant species range in size from the cotton pygmy goose , at as little as 26.5 cm (10.5 in) and 164 g (5.8 oz), to the trumpeter swan , at as much as 183 cm (6 ft) and 17.2 kg (38 lb).
The whooper swan's nearest relatives, the trumpeter and tundra swans, share its musical tracheal loop. Zoologist D.G. Elliot reported in 1898 that a tundra swan he had shot and wounded in flight began a long glide down whilst issuing a series of "plaintive and musical" notes that "sounded at times like the soft running of the notes of an octave ...