From here:

Bats are destroying British churches, the Second Church Estates Commissioner Sir Tony Baldry told Parliament. Speaking in response to a question from the member for Bury North, Mr. David Nuttall (Cons.) on the “ effects of bats in churches”, on 4 July 2013 Sir Tony said the “present situation” of 6400 churches infested with bats was “simply unsustainable.”

“A small number of bats living in a church can be manageable, but parish churches are finding an increasing number of bats taking up residence in large roosts. There are significant costs in financial and human terms to those who worship in these churches, and to the wider community,” he said.

[….]

He [Sir Tony Baldry] told the House [the] bat infestation was “not a joking matter…..”

I’m not laughing – really.

When I was in Britain around 15 years ago, I took a walk to Roath Park Lake close to where I used to live. To my surprise, I noticed a few Canada geese floating serenely on the water; “aren’t they lovely” someone next to me said. “Lovely”, I agreed with a smirk; apparently Canada had been exporting some of its excess wildlife. Just wait a few years when they have gone forth and multiplied and are pooping all over your well-manicured trails, I thought.

I’m sorely tempted to bring a few limey bats back to Canada and introduce them to the Anglican Church of Canada.