A long, long time ago one little drop of a weird element called neutronium fell to earth causing some organisms to disappear and appear in an alternate dimension that the drop itself has created, strangely all of this were birds and most of this birds were ducks, anyway in this alternate world birds had the chance to develop such as we did at the same time but with some differences, they called their world Avitania and their countries and cities had different names to ours and also they count by dozens not by tens, but that none of us know is that both worlds are still connected, the place where the drop fell has become a portal that connects them.
Some modern bird and human scientists found the portal and start to work together to find out why is it there suddenly they founded a secret society that controls the portal and keep the secret so no one knows about it for the safety of both worlds.