Yes, there were birds that big in the ice age.
This is Ulf, an Ice Age "Conan the Barbarian" type of hero. Those words are a 100 word drabble I made up for a fanword contest, so I felt it would only be appropriate to use Ulf for a quickly made action blood'n'gore piece.
Backstory? Well, one of the vultures must've picked him up and now he's so pissed that he has to kill the other one too just to get his berserker rage down to a manageable level. Or he was in the mood for chicken, but this was the closest thing he could find.
The stuff all over him is blood, guts, and body hair. And yes, he is ripped and wearing nothing but a loincloth. Enjoy, everyone!