This thread has been enlightening so far. Thanks for starting it,
@Elfcrusher
At our table last week, a player asked if his character recognized the leathery winged bird-like reptilian beasts that were attacking their ship in the fog. I simply said “no, these creatures appear to be from a land that time forgot.”
After the game, I second guessed myself. Was I telling the player what his character thought? Should I have asked him in return “tell me about what in your PC’s life experience might inform him about such creatures.”? In this case, I don’t think a roll was appropriate since there is no special ability to be gleaned for said creature. It was a Yes or No call on my part, but I still felt critical of myself that I may have botched it.