A Bird with 3 Legs

Today morning i was on the way to my college. I have to cross a river to reach my college. Usually I go to college by bike. As there was rain yesterday night, water got stagnated on the way and as my bike was new, I used bus to go to my college. And from the bus stop I have to cross the river through a bridge. The bridge is about 100-200 ft long and I enjoyed the nature while I was crossing the bridge. Suddenly a I saw a bird flying across the bridge. I noticed the bird and i could find the bird had 3 legs. I couldn't believe what I saw. I didn't have a camera or else I would have had a snapshot of it. It was like a woodpecker but I felt it was bigger than that.It was reddish with blue shades.It flew with a greater pace and I would have atmost seen it for 10 seconds. Still I have a doubt whether it had three legs or someone had tied a wooden stick on its body.