devtrackers.gg
After the nine boss animals were up on the wall I did wonder about the tenth space. I killed the boar in Ireland and earlier on the Auroch in France. For the Auroch I got its head in the inventory. I have visited Petra's friend whatshisface, he said he was impressed (or whatever) and I got the screen with the nine crosses . . . but no tenth crossed-off animal, no trophy on a wall and the head is still in Eivor's inventory. To be fair, the inventory is still bonkers with tons of one-use items clogging it up so another one isn't a big deal.
I am not sure what happened with the Irish boar.
But anyway - is that how it is supposed to work?