Abstract: A convertible bird box as illustrated has upper and lower entrance openings located in a pivoting front wall panel to create an upper roosting perch and a lower nesting location. A closure having a single opening rotates between the upper and lower entrance openings to selectively create a nesting box and a roosting box. The invention further describes a method for selectively forming a winter roosting box and a spring nesting box.

Abstract: A feeder for goldfinches comprising a hollow body for receiving and retaining feed, at least one perch on and exterior to the body, and a feeding opening positioned below and cooperating with the perch so that the opening is accessible only to a gold finch feeding upside down. Since the goldfinch is able to feed while hanging upside down and the housefinch cannot, the feeder accommodates the goldfinch and excludes other birds including the housefinch. The invention further comprises a method of attracting goldfinches and excluding housefinches comprising providing a feeder according to the invention, filling it with the appropriate goldfinch feed and hanging it.