Due to their large size, swans have few natural predators in the wild. The swan's main predator is the human who hunts the swan for it's meat and it's feathers. Other predators of the swan include wolves, raccoons and foxes they prey both on the swan itself but also on it's eggs.
Although swans do not mate for life, couples establish strong bonds between one another and can often mate for a few years. Swans build their nests on land out of twigs and leaves, and the female swan lays between 3 and 9 eggs. The baby swans (known as cygnets) hatch out of their eggs after an incubation of just over a month. The cygnets are often on the water with their mother swan within a couple of days and stay close to her for both protection and warmth. The mother swan will guard her baby swans furiously from predators or any animal that she believes is a threat.
Swans have many adaptations in order to successfully survive life on the water such as their streamline body shape, long neck and webbed feet. The wings of the swan are also very strong meaning that the swan is one of the few heavy birds that is able to fly, even if it is only a short distance.
There are around 7 different species of swan found around the world. The size, colour and behaviour a swan individual is largely dependent on it's species and the area in which it lives.
Today swans are a threatened species of animal mainly due to hunting and habitat loss. Pollution (mainly water pollution) is also a major reason as why the swan populations are declining. Humans kept swans for many years for their meat, but today have more respect for the conservation of the swan and keep more sustainable animal food sources.