User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-1011548-20120508204539

OK, I'm convinced that Thunder Halks (in Frontier) are actually young Berus. They have that same style of yellow fur around the head, same grey crest around the head... natural thunder-based abilities, same body plan. All its really missing are the wing-whips, and you could argue they develop at adulthood.

I'm also leaning towards the idea the Dragon Halk is a young Crimson Fatalis. A bit more of stretch, but - two wings, two legs, spikes running along the spine (in Forward 4 trailer, at least), horns on the head, more raggedy wings than the other Halks. Quite where the Hunter got a baby Crimson Fata from is another question altogether, though.

I can't work out if any of the other Halks are species we're familiar with, though.