You caught me in this story to see what was going to happen with all of these pigeons. I had to giggle at the picture of the boys trying to take these pigeons on a bus. I could picture this little scene in a movie, actually this whole story. It would be a sight to see if someone directed it properly as you wrote it.
It was a fun read and I'm glad the boys got found out and the one was punished for it. I hope Al got it too. You didn't say whether he did or not. Maybe you could write a little bit of what happened to him too in the form of punishment to finish toward your ending.