The tawny owl is the UK's most common owl, found in woodland, parks and large gardens. Its welfare depends on territory quality, nest site availability and access to small mammal prey — particularly field voles and wood mice.
Tawny owl welfare in suburban and rural areas is supported by garden bird box schemes — tawny owls accept large nest boxes (20cm entrance hole, 30cm deep) in suitable trees. Territory quality determines whether pairs can raise chicks successfully: gardens and parks with mature trees providing both nest sites and woodland floor small mammal habitat support established pairs with high breeding success. Road mortality removes established adults from territories, requiring dispersing young birds to fill gaps. Wildlife-friendly gardens with leaf litter and diverse native planting support higher small mammal densities and better tawny owl prey availability.