I love the illustrations at 365goblins.tumblr.com. They are fantastic. One of them looked like it would be fun to build stats for... so here you go. The Goblin Crane Rider is a flying creature that you can throw at your low level heroes.
Goblin Crane Rider by Sean Pope. Originally found here.
Only goblin nobles are strong enough to own a crane. The crane riders often hunt in packs, and will spend the majority of their time diving down to take advantage of their Dive Attack, and then fluttering away out of reach. Your heroes better have ranged attacks...