No; they don't pose a challenge, they provide nothing but annoyance. It goes from fighting a horde; alternating between melee and guns to conserve ammo to seeing a bird and having to run far enough away that I can swivel around and pick it out of the sky before returning to the horde or driving around in a vehicle, stopping at a POI, dispatching 10 birds, then clearing it.So in other words, you require an easier game with fewer risks. I think modding the birds out will be your only option.
They're the same as the Cliff Racers from Morrowind and you better believe that I modded out those @%$*#!s, too.