This video says about itself:
13 July 2016
Bluethroat mothers work hard to keep their nestlings warm and dry in a nest on the ground under grasses or shrubs, lined with fur from cattle and reindeer. The female sits on this nest throughout the night; however, during the day she leaves to find food for herself and her chicks. To keep the location of her nest hidden from predators, she and other ground-nesting species often weave through the low vegetation away from their young before flying into the open.
Bluethroats live in Europe, Asia and Alaska.