A bird repeller is provided to prevent birds from approaching a utility pole and building their nests on the utility pole, the apparatus comprising: a solar cell a fixing frame for fixing and installing the same a flexible fixture which is elastically inserted and installed between cross arms a wing means operated by the solar cell a bird detecting sensor which is able to recognize approach of the birds a noise generator and a sound wave generator which generate noises and sound waves which the birds dislike and LED light emitters for emitting light which the birds dislike, whereby the bird repeller prevents fowl and other birds from building their nests between the cross arms provided on an upper part of the utility pole so that no wires are short-circuited and no other damage is generated.
