Over the years, farming has moulded the peculiar countryside found in the valleys of the northern half of Navarre. This countryside is characterised by grasslands or pastures punctuated by hedgerows, banks, brooks with vegetation and thickets, forming a mosaic with a wide range of environments. This countryside is generally land won over from oak woods, the species of wood vegetation still existing pertaining to the original environment: oak, ash, maple, hazelnut, cherry trees, hawthorn, dogwood, sloe, etc.
This habitat is typical of the Atlantic Valleys, the valleys of the Western Sierras and, to a lesser extent, Pyrenean and northern Pre-Pyrenean valleys.Birds
The combination of open spaces and other, well-vegetated areas makes for a good number of niches exploited by many species of bird, some from local forest habitats and others belonging to more open landscapes. The human activity in these areas favours the presence of more general birds such as corvidae, sturnidae and fringillidae.
In this habitat, it is normal to see birds such as the Red Kite, Black Kite, Common Buzzard, Common Kestrel, Quail, Iberian Green Woodpecker, Wryneck, Sky Lark, Barn Swallow, Tree Pipit, White Wagtail, Wren, Dunnock, Robin, Blackbird, Common Stonechat, Garden Warbler, Common Whitethroat, Blackcap, Cetti?s Warbler, Melodious Warbler, Spotted Flycatcher, Great Tit, Red-backed Shrike, Carrion Crow, Common Raven, Magpie, Spotless Starling, Common Starling, House Sparrow, Tree Sparrow, Common Chaffinch, Linnet, Goldfinch, Greenfinch, European Serin, Common Bullfinch, Yellowhammer, Cirl Bunting and Corn Bunting.