Critics pooh-pooh use of spikes in trees to protect cars from birds | UK news | The Guardian
▻https://www.theguardian.com/uk-news/2017/dec/19/bird-spikes-in-bristol-trees-to-protect-cars-cause-dismay
Spikes have been fixed to trees in a leafy neighbourhood of Bristol in an attempt to prevent birds perching there and creating a mess on residents’ cars.