i'm a granny whose father was a ww2 raf pilot, and he trained on tiger moths in canada
As a "Granny" you are of an age and education that should know better than to commit such mangling of the language. Even my (US) Microsoft spell checker revolts at your errors. One naturally assumes that if writing is gobbledegook then content is the same...This diminishes your credibility, especially as a first post.
are sssi's (nature reserves) featured on pilots' maps?
Well, no...If every site that was suspected of harbouring Great Crested Newts, rare spiders or flowers were shown on maps there would be no room for the important stuff like mountains, power lines, TV towers etc. Also, sssi's (sic - ouch!!) - are not necessarily nature reserves. Or viccy-verkie...
what happens if a swan gets in the rotors
Well, use your imagination. (For those lacking in that department, it gets very messy for the swan, and for the airman who has to hose it all off later.) Sure, the swan could do far worse damage in engines, tail rotor or cockpit but that question was not asked...
Just what is being asked here? And by whom? And why?
Just what is your point?