Used Wimbledon Tennis Balls Become Tiny Homes for Mice

Every year, an astonishing number of tennis balls are used during the Wimbledon tournament — more than 54,000. This high figure is due to the fact that tennis balls are replaced at frequent intervals during a match to make sure they aren’t worn down or become too warm to affect the ball’s physical dynamics.

New life of old things

Used balls are resold every day at the club to spectators on the grounds, and nearly 700 balls go missing every year, probably taken by the audience and kept as souvenirs. Since 2001, some of these balls are being donated to various animals conservatives around Britain who make cute little homes for harvest mice.

The Eurasian harvest mouse is typically found in fields of cereal crops, such as wheat and oats, in reed beds and in other tall ground vegetation, such as long grass. An adult mouse weighs as little as 4 grams. The mice normally weave their homes out of shredded grass and reeds, attached to stems well above the ground.


In recent years, their habitat has come under increasing threat from intensive farming methods. Yearly floods also destroy their homes.

Some animal conservatives then discovered that tennis balls make excellent, waterproof homes for these tiny rodents once you cut a small hole into the balls. The balls are attached to poles about a meter or a meter-and-half off the ground where they can make their nests in relative safety from birds of prey and weasels, which are too big to get through the hole.

Now aside from Wimbledon, many lawn tennis clubs around the United Kingdom regularly donates used tennis balls to various wildlife conservation organizations to help them in their conservation efforts.

A harvest mouse finds a home in a tennis ball at Slimbridge Wetland Centre in Gloucestershire.
The natural nest of a harvest mouse.


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