Wildlife habitat structures
Reference articles are in English.

A common lizard basking on a dry stone wall in Morvern, Scotland. Source
Description
Stone habitat structures incorporate cavities and niches intended to shelter small wildlife. Their design combines stable construction with planting and a relationship to surrounding habitats. Openings and materials can be chosen for a particular purpose, without guaranteeing occupation by a species.
History
Traditional dry stone walls provide varied spaces within an agricultural landscape. Purpose-designed contemporary work develops that potential: Alain Mathieu’s ecological spiral combines a planted stone structure with built-in niches.
Commissioning
The brief should identify the intended wildlife, local conditions and continuing care. Ecological advice may be useful in choosing a location and design. Cavities and openings should be coordinated with the stability of the structure and the surrounding planting.