u/Then_Director_5206

Despite fire/fighting being more infamous, the type combo that I've long grown sick of is normal/flying. Now, the reason for many bird Pokemon being given normal type is often "They are just birds". I get it, but if that's the case, why aren't normal/water or normal/bug types just as prolific? I find it odd that Bibarel is the only normal/water type. And even though many first stage, early route bugs would fit, there no bug/normal types as of gen 9. What makes birds so special?