Swallows are often found nesting in barns proposed for conversion and as a species of conservation concern, should have alternative nest sites provided if existing sites are to be lost. Swallows prefer to nest in covered areas, as opposed to house martins, which nest under eaves. However, Richard Green Ecology has successfully mitigated for loss of swallow nest sites by providing an eaves/ridge overhang box with an open bottom and ledges for swallows to nest on (see photographs). Provision can also be made in open-fronted log-sheds, car ports or porches, although if using the latter, droppings can be an issue on cars or at the front door!