Eurasian Wren

A very small insectivorous bird, the Eurasian wren (Troglodytes troglodytes) is the only member of the wren family Troglodytidae present in Eurasia and Africa (Maghreb).

The Eurasian wren is a genus from the Holarctic. It occupies a wide range of environments, generally some sort of bushy or uncultivated field with low soil cover; parks, hedgerows, thickets, plantations, woodlands and reed beds. With clumps of brambles or gorse, rugged pasture, moorland, boulder-strewn hills, rocky shores and sea cliffs, it inhabits more exposed locations.

The bulk of the diet is produced by insects; these are primarily butterfly and moth larvae, such as geometer moths and owlet moths, as well as beetle larvae, fly larvae, larvae of caddisflies and aphids. Spiders have other food products, and certain seeds are also taken.

The wren is an ever-active species, foraging for insects constantly on the move, in the open or among dense foliage. With rapid jerks, it runs, poking through crevices, inspecting old masonry, jumping onto fallen logs and delving down among them. In the canopy, it often travels higher, but remains more near the ground, sometimes flushed from under overhangs on banks. 

It hops up the lower portion of the tree trunks occasionally, looking like a miniature nuthatch. It flies away sometimes, its brief flights fast and straight but not sustained, its small round wings whirling as it flies.