Self-dispensing poultry and small animal feeder dispenses feed from a hopper into a catch dish on demand by action of the bird pecking at the feed in the catch dish or small animal feeding at the catch dish. Interchangeable regulating disks have respective different size center apertures, and a groove seating a cross-bar of a trigger rod on which the catch dish is supported. A spade or paddle at the upper end of the trigger rod moves when the trigger rod wiggles or shifts, and this causes feed to fall through the regulator disk center aperture to replenish the feed in the catch dish.
