An animal feeder includes two feeder sections arranged end to end with a common hopper extension feeding individual hoppers above a shelf onto which feed can fall to be taken by the animal or dropped into a trough below the shelf. The height of the shelf is adjustable to change the feed rate by straps which are adjustable by a common longitudinal bar which is located at a selected adjustment position by meshing teeth. The portion of the lever is movable in a direction away from the plate a non-meshing position in which the bar can rotate around the pivot axis. A common water supply extends along both feeders and is heated by a common heating element.