Have some tiles left over from that bath renovation? Here they cleverly clad a roof and make a fancy door surround. The shades of green and white blend into a garden landscape, and with time, the ceramic glaze will grow dull, making this a less conspicuous—and thus safer—nesting spot. This style of house, mounted on or suspended from a tree, may attract titmice and nuthatches, who favor tree cavities for nests in spring and early summer. Remove the nests in late summer or fall after the brood-rearing seasons are over.