They get annoying as HELL when you have an army of them. If you do, be prepared to get a headache within a few minutes because of the squawks they do. Other than that, you would be fine with just a few of them.
Encountering this creature will mean your imminent death. If you want to take this you need a tek trap, as they can break metal. It can outrun almost all creatures. It will take approx. 350 shocking tranq darts for a level one and 1240 for a 180.