Not an aeronautic engineer, but to compare to a similar mass like a bird, having wings would make the hobby-sized drones quite a bit bigger. I assume there's al

Not an aeronautic engineer, but to compare to a similar mass like a bird, having wings would make the hobby-sized drones quite a bit bigger. I assume there's also the ease of changing direction / altitude that comes from having the paired motors, controlling tiny planes would take tiny ailerons and flaps (which, like you say, may not scale down effectively).