Maybe it’s you previously exterminated one of the other Karkas nearby, thinking it was that particular one needed. I know I’ve done that.
Here’s some that might be nearby:
Sanctum Harbor You’ll have a better chance spotting this karka in the fog than a sailor would.
Sanctum Harbor Search the nest where the phoenix roosts.
Sanctum Harbor Go under the bridge, then head toward the light.
Sanctum Harbor Search behind the falls beneath the bridge.
Sanctum Harbor Haul in a fresh karka catch.
Good luck.
