Shetland Wild Flowers #4 (Or is it?)

Is the bluebell, even if it is pink, a wild flower?

My Shetland book of Wild Flowers has it but Cassell's Wild Flowers which is a bit of a bible says you don't get Bluebells in Orkney and Shetland. If that's the case these must be garden escapee's.

Blowy day today but these were sheltered in the deepest darkest part of the garden (does that make them garden flowers?)