>Machamp and Conkeldurr have 25% to be female
>just a bird is 100% male for no real reason
Because its counterpart is Vulgina
Pic slightly related
Braviary is 100% male because only men should have the right to vote. If you look at politics, you can see how everything went downhill once women and other minorities got involved.
There's no fucking excuse for this shit, none at all. Unova's leveling trend was goddamned atrocious.
Mandibuzz, plus in nature the males tend to have more colourful and lush plummage.