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Why are there so many mice in London?

London is known as the mouse capital of Europe, with more mice than any other European capital. New Londoners often wonder - why does London have so many mice?

London is huge

Because London is a lot bigger than most European cities, it also has more mice

Larger areas mean more mice

Though some people love to label London as one huge, mouse-infested health and safety hazard, many fail to acknowledge that the city's sprawling size means more pests of all kinds. Explore

London's architecture

It is harder to block out mice in old London buildings than other European cities because of the types of materials used


London is a city with canals, waterways, and lots of old building with small spaces for mice to nest in. Explore

Poor waste management

Seeing bags overflowing with rubbish is a common site on London streets. Other European cites have more sanitary waste management systems, limiting mice's food supplies.

London's poor waste management led to its mice infestation

Since the bubonic plague, London's attempts at waste management have always been a hair behind what is necessary. This delayed approach to waste management has attracted mice. Explore

Rodenticide resistance

Because of the scale of London's problem, mice have now become resident to poison for rodents.

Extended use of rodenticides has lead to resistance

Because of the widespread use of poisons to control London's rodent population, mice have become resistant to traditional rodenticides. Explore

The predator ecosystem

London removes many of the survival threats mice ordinarily face in the wild.

Fewer predators and more food means more mice

In their natural, rural environment, mouse populations are curtailed by an extensive array of predators and a limited food supply. In an urban setting such as London, such population restrictions are no longer a factor. Explore
This page was last edited on Wednesday, 11 Mar 2020 at 11:57 UTC