This would basically be identical to the Life Stage observation charts on the taxa pages, but divided by sex instead of life stage. It could be added as a new tab next to “Life Stage”. This would allow users to see if one sex is more commonly seen during certain times of year, or if one sex is difficult to find, e.g. female Bullock’s Oriole.
I would actually love to see this implemented, because it would allow me to see which is seen more frequently in the organisms I research.
Behold, it is done: https://www.inaturalist.org/taxa/9357-Icterus-bullockii I think we just need a lot more people annotating observations!