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entry   Whilst overwintering, Bewick's swans form very large
flocks and mix with other swans (7). They tend to feed on roots
and foliage, often in farmland during the day, and roost on the
water at night (3) (7). Individuals can be identified by the
unique patterns of the bill. Studies have shown that pairs stay
together for many years and should one individual die it can
take up to three years for the other to find a new mate (6). It
has also been shown that family groups remain together and make
the migration as a group (6). During the breeding season, pairs
produce between 3 and 5 eggs which are incubated for up to 30
days. The young swans, known as cygnets, will have fully fledged
after a further 40-45 days (3). They stay with their parents
during the first winter and often during their second too, even
if the parents have produced a new brood (7).    © Wildscreen
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