Absolutely the right approach. The birds' welfare comes first
It's not a Schedule 1 species, bizarrely, but locally very rare. It's popularity means that people try to get too close to nest sites for one reason or another
Personally, I won't even discuss general locations with anyone I don't know, even well known sites. You don't know who might be listening in
Lesser Spotted Woodpeckers still cling on within the county Charles but their presence has not been publicised on this forum for many years now due to (deliberate human) disturbance issues of one kind or another at every site they have been previously recorded at. Similarly, at least one or two locations in fairly close proximity to GM also follow their own similar news blackout which is a similar shame but ultimately has been proven to be entirely necessary.