Patent ID: 7610876

Claim:
An ergonomic bird feeder configured with at least one feeder station, said feeder station comprising a circumferentially keyed circular feeder portal and a paired circumferentially keyed circular perch portal, the ergonomic bird feeder comprising: an elongated hollow cylindrical feeder tube having an open top end with external threads and an open bottom end with external threads; a circular cover cap with internal threads configured for rotationally engaging the external threads of said open top end and enclosing said open top end of said feeder tube, said cover cap configured for engaging hanging hardware; a circular base with internal threads configured for rotationally engaging said external threads of said open bottom end and enclosing said bottom of said feeder tube; at least one keyed feeder portal insert for inserting into and mating with said keyed feeder portal, frictionally engaging internal and external wall surfaces of said feeder tube upon rotation of said feeder portal insert relative to said feeder portal; and at least one keyed perch portal insert for inserting into and mating with said keyed perch portal, frictionally engaging internal and external wall surfaces of said feeder tube upon rotation of said perch portal insert relative to said perch portal.