A free program for Android, by Nature Droid.

Iron Birds is a free game for Android that allows you to fly and shoot a variety of different Iron Birds. The objective of the game is to destroy as many enemies as you can before the time runs out. To accomplish this, you will need to utilize different weapons. As you progress through the game, you will unlock different weapons, such as shotguns, rifles, grenade launchers, and machine guns. With each weapon, you will also be able to upgrade its firing capability. For example, a weapon with a longer range will be more effective against enemies that are far away.

The enemies in Iron Birds are very strong. They are able to withstand your attacks and, in some cases, even shoot back at you.