Actually, that's not true. I've seen birds to gear-ups, and were it not so tragic,it would be rip-roaring funny. Have you ever seen a bird do a glassy water landing? They can misjudge height on the water, too, and have accidents just like us frail humans.
I've had bird strikes in instrument conditions, so assuming that they're in there is a good bed. (I've also had them at night).
The worst, however, is having to hold because a golden eagle took the missed and went lost com, and they had to shut down the airspace until they found him. Holding for a bald eagle is one thing, and the golden eagle was tolerable, but I would have been bent out of shape for a pelican or a seagull.
I haven't seen it in writing, but I understand that birds are legal to use the helicopter minimums, in lieu category A fixed wing.