There's so much stuff I could tell you, I'd probably end up writing it for you, LOL.
Don't forget that pigeons were trained to scout out the bright orange life vests of people stranded at sea, since they can see better and farther than us in foggy/bad weather. They also took aerial photographs and they were trained to guide missles, but that of course never got into action.
Some other good war heros besides Cher Ami were G.I. Joe, Mary of Exeter, Winkie, and Kaiser. Those probably have the better stories. But there were other famous and awarded birds. The ones I can think of off the top of my head are: William of Orange, Duke of Normandy, Beachcomber, Princess, Royal Blue, Navy Blue, Mercury, Scotch Lass, Reuter Express, President Wilson, The Mocker, Spike, Jungle Joe, White Vision, and Straight Arrow. There are more, and there are stories and info on each, but it's bed time for me. I'll give all the info I know and have gathered up over the years, tomorrow.