How To Unlock: Kill 10 eagles.
Warning! This trophy is currently glitched for some. You will come across eagles flying in the sky in many of the chapters. Simply kill 10 of them to unlock this trophy. I recommend you to try to kill ten eagles in the tutorial chapter during the sniper section, or very early in the game, because there is a chance that this trophy will be ticked off as done in the statistics even though you haven't unlocked it yet. It will also be easier, due to low-to-no enemies, and the fact that the AI difficulty scale is lower than later on in the game.