Thanks JoMe
My source for the starting location is the loss list available at
http://www.rafandluftwaffe.info/luftwaffe1.html.
It is not error-proof, but in this case as both other sources point that the Ju 88 was lost off Scotland, Aalborg seems a far more probable starting location that Kirkenes.
I know that 1.(F)/124 moved to Kirkenes in February 1941 according to Holm's website and flew recon over Murmansk area before 22 June 1941, but during the spring of 1941 several crews were lost during recons off/over Scotland from Danish and South Norwegian bases. I guess detachments remained in the south to fly these missions.
The loss on 17 May 1941 is not in the loss list for Luftwaffe in Norway, while those of 31 March and 24 April, both too off Scotalnd, were. The source listed above says the two latter started from Norway, and the former from Denmark, so it is coherent.