Wildlife World Hole Protector for Birdhouse
€5.95
Stainless steel ring to protect the entrance of birdhouses.
The hole is 32 mm, which bird protection organisations consider a universal size for all small birds. Suitable for blue tits, tree sparrows, etc.
A ring around the entrance prevents the residents from gradually damaging it with their claws and beaks—but most importantly, it prevents squirrels, woodpeckers and other predators from enlarging the opening and gaining access to the eggs and chicks.
