Can you tell the age of a swan by the color of its feathers?

No, the color of a swan's feathers does not necessarily indicate its age. While cygnets, or baby swans, have gray or brown feathers, adult swans can have a range of colors depending on their species and genetics. For example, mute swans typically have white feathers, while black swans have black feathers. However, the color of an adult swan's feathers can change over time due to various factors, such as diet and environment. Additionally, the appearance of a swan's feathers can indicate its health and well-being, but not its age.