A bird feeder is provided having adjustable port access. The feeder includes a seed reservoir with a side wall that has at least one seed access opening and an adjustable feed port element. According to one embodiment, the adjustable feed port element is a feed port assembly. The feed port assembly includes a base with a rotatable insert having a perch coupled thereto in fixed relationship so that the perch and insert rotate as a unit. According to another embodiment, the adjustable feed port element rotates around the perch between a first position in which the perch is below a feed port being accessed, enabling birds to feed while standing on the perch, and a second position in which the perch is above a feed port being accessed, requiring birds to hang upside down from the perch to feed.