To provide a feeding device enabling only a target small bird to be fed precisely.

A feeding box 5 storing a food for the bird, and a roost 6 formed so as to correspond to the feeding box are combined. The roost 6 is supported so that the height position of the roost 6 may be changed according to the load applied by the body weight of the bird clinging to the roost 6. The feeding box 5 is supported at the upper part of the roost 6 so that a feeding opening 5a may be opened downward. In another aspect, an openable shutter is installed in the feeding opening of the feeding box, and the shutter is opened and closed according the the height position of the roost.