A bird feeder cable lid lock is provided for a bird feeder having a feed reservoir body with a removable lid having an aperture therein, and a wire or cable threaded through the aperture by which the feeder is suspended in use. The cable lid lock includes a threaded bolt having an axial hole through which the hanging cable is fed and an internally threaded base element in abutment with the lid and having a stepped or tapered bore with a diminishing diameter that receives the bolt. The bolt has a relief cut in the shank to form at least two arms on different sides of the cable. The arms are pressed toward one another as the bolt is tightened into the diminishing diameter base element bore, squeezing the cable where it extends through the bolt and exerting a significant force normal to the cable that, with the coefficient of friction, creates a very effective locking action on the cable to secure the lid against the feed reservoir body.
