View across the Sound of Rum from the Singing Sands, Isle of Eigg, Scotland, United Kingdom, Europe

Looking towards Isle of Rum at twilight from rocks at Singing Sands (Camas Sgiotaig), Isle of Eigg, Inner Hebrides, Scotland, United Kingdom, Europe

Looking towards Isle of Rum at twilight from rocks at Singing Sands (Camas Sgiotaig), Isle of Eigg, Inner Hebrides, Scotland, United Kingdom, Europe

Singing Sand Mountains, Mingshashan

Man playing accordion, Bichlalm (1731 m), Grossarl Valley, Salzburg, Austria

Man playing accordion, Bichlalm (1731 m), Grossarl Valley, Salzburg, Austria

Alpine chough (Pyrrhocorax graculus) at the Mittenwalder Hoehenweg, behind Karwendelmain ridge and Pleisenspitze, Karwendel, Tyrol, Austria

Northern Cardinal (Cardinalis cardinalis), male on Mountain Cedar (Juniperus ashei), Uvalde County, Hill Country, Central Texas, USA

Western Tanager (Piranga ludoviciana), adult male singing, Rocky Mountain National Park, Colorado, USA

Mountain Bluebird (Sialia currucoides), male with prey, Rocky Mountain National Park, Colorado, USA

A girl riding a camel, Jiuquan gansu china

Four people riding camels on a desert landscape, Jiuquan gansu china

A woman and her daughters riding camels on a desert landscape, Jiuquan gansu china

Teenage girl playing guitar and singing outdoors, Stanford, Western Cape, South Africa

Teenage girl playing guitar and singing outdoors, Stanford, Western Cape, South Africa

Teenage girl playing guitar and singing outdoors, Stanford, Western Cape, South Africa

Teenage girl playing guitar and singing outdoors, Stanford, Western Cape, South Africa

Blue throat (Luscinia svecica) male singing in the mid-mountain piornal, Sierra de Gredos, Avila, Spain