Juan Carlos Munoz / Cnoc Raithni / Raithnighe national monument, burial mound surrounded by drystone wall. Inisheer, Aran Islands, County Galway, Republic of Ireland. May 2011.

Andy Rouse / European red fox (Vulpes vulpes) vixen on wall. UK. June.

David Woodfall / Dry stone walls in a field of Cow parsley (Anthriscus sylvestris) and Buttercups (Ranunculus acris), New House National Nature Reserve and North Pennine Dales Meadows Special Area of Conservation, Yor...

Juan Carlos Munoz / Landscape in Astrana with herd of cattle, Soba Valley, Cantabria, Spain, November 2018.

Andy Sands / Curlew (Numenius arquata) preening on top of dry stone wall, Upper Teesdale, Co Durham, England, UK, June

Andy Sands / Curlew (Numenius arquata) Walking along dry stone wall, Upper Teesdale, Co Durham, England, UK, June

Andy Sands / Curlew (Numenius arquata) Standing along dry stone wall, Upper Teesdale, Co Durham, England, UK, June

Andy Sands / Curlew (Numenius arquata) Standing along dry stone wall, Upper Teesdale, Co Durham, England, UK, June

Andy Sands / Curlew (Numenius arquata) standing along dry stone wall, Upper Teesdale, Co Durham, England, UK, June

Andy Sands / Common sandpiper (Actitis hypoleucos) walking along top of drystone wall, Upper Teesdale, Co Durham, England, UK, June

Andy Sands / Woodcock (Scolopax rusticola) Female roosting on dry stone wall, Upper Teesdale, England, UK, June

Andy Sands / Woodcock (Scolopax rusticola) Female Perched on dry stone wall, Upper Teesdale, England, UK, June