I would say they could use fire in at least one way. A prominent theory* for proto-humans is that the first use use of fire involved merely capturing natural fires (like a grassland fire or from a lightening strike), and taking them back to a hearth in the cave or camp and keeping them going forever. You don't need a lot of dexterity for this, but do need a decent intelligence.
It is thought that it was quite some time later before they were able to start fires with friction, which may be tricky for the good ol hook-wing. But perhaps the hook-wing can manage it with flint?
Once the aliens have fire in a reliable way, no matter how they got it, they would probably play with it enough to eventually discover the benefits to cooking meat (easier to digest, gets rid of parasites, etc), using it to deter predators, and helping to fashion tools. Maybe even culture develops around it, with fire keepers as early priests and the most shielded hearth space belonging to the strongest chiefs, as some theories say happened with humans.
*Note: Any theory of fire with early hominids involves a lot of conjecture, so some disagree with this timeline.