Thanks @stef1 - really glad you enjoyed my post! And well done on finding the ptarmigan!
The weather does change very quickly and unexpectedly in the Highlands. I did another walk today, but unfortunately didn't reach the summits I was aiming for because it suddenly went from dry and sunny to very windy with low cloud and poor visibility. Sometimes you just have to put safety first, especially as winter approaches. But even a failed walk helps my fitness :)