This “aquatic” barrier then becomes impassable for the animals that depend on it. Water being a vital and preponderant resource for living species, including animals. Especially since the latter have no alternative sources of water. Likewise, birds must regularly wash their plumage in order to maintain their thermal insulation. If they are unable to keep their feathers clean, they will not be able to resist the cold.
A solidarity and ecological gesture
So placing a tennis ball inside a puddle, a bird drinker, a rainwater collector, or even a pond can prevent the surface from freezing completely. In constant movement by the principle of current and/or wind, the tennis ball automatically creates a small opening in the ice, allowing animals to hydrate and for aquatic animals to breathe underwater.
Other tips help protect animals in winter, such as installing shelters via a pile of wood or dead leaves in a corner of the garden or even leaving wild areas to allow animals to find natural shelters. By adopting this type of gesture, your garden becomes a welcoming place for biodiversity and contributes to its maintenance.
This is why this winter, the place for tennis balls is not only in cupboards but also in gardens.