Just a random pondering for a Saturday afternoon 
I've had a mixture of females and males over the years and my girl dcats have always been more vocal. Boycats have tended to announce their arrival/presence and miaow when they're hungry but my girlcats prefer to engage me in conversation - one likes to give me a running commentary on everything she does 🙄 while the other insists on giving me a blow by blow account of her day when I get home from work; I can't just nod and smile though - I have to do the whole 'oh really... that's terrible... what did you do next?' thing while she chunners on 
Is it a coincidence or are your female dcats more vociferous than your boys? 🤔