There is actually a National Pigeon Day which is celebrated April 11 of every year. As messy and noisy as pigeons can be they have had great significance and impact in history. Firstly, they were used a means of communication.. carrier pigeons saving thousands of lives over the years even in World War’s I and II.
Pigeons have eyes on the side of their heads. One of the reasons they bob their head is to give them depth perception. The Pigeon Control Resources Center says: the pigeon’s eyes function much better with stationary images and therefore as the pigeon takes a step forward the head is temporarily left behind. The next step jerks the head forward again and so on. This allows the bird to correctly orient itself.
And another Eye Didn’t Know That Pigeon Fun Fact, they can see millions of different hues.