It is common only in that habitat, becoming rare in pine forest, where it occurs only where tree-heath is also available.
From the en.wikipedia.org
This species forages for insects and other small invertebrates in tree heath, laurisilva and other woodland.
From the en.wikipedia.org
Heath and Helena up a tree?
From the metro.co.uk
The sludgy pockets of mud and water that 1000 hikers a year gouge into the heath and tea tree landscape of the poorly-drained soil give no indication of depth.