Posting here as well as emailing mountaineering Scotland because I can't see anything on https://www.mountaineering.scot/access/birds-and-nesting yet.
I'm no bird expert but there's a pair of either ravens or at least really big crows right where the guidebook says they nest on Loch Tollaidh Crags
Yes, ravens nesting on their titular buttress. The nest is huge!
Seems to be called Flag Buttress on UKC.