In reply to Adam Russell:
Hi Adam,
Interesting. If placed by climbers, which seems highly likely, they should be removed.
I'm not particularly anti-bolt belays at trad crags in a few limited circumstances, but at the Hawkcraig the scramble down is easy, and could even be backed up using trad gear if required. There are also alternative ways to walk down.
I guess you know, but there were a number of new bolts added in 2011, which since have been rightly removed. https://www.ukclimbing.com/news/2011/05/hawkcraig_trashed-62114
There is one old, single bolt at Hawkcraig, to belay above The Dreeping Beak and nearby routes, which I think I found useful, with little else available.
D.