Birdwatch: wood warbler's summer visits to Britain in steep decline

If current downward trend continues, migratory species may soon disappear as a British breeding bird An unmistakable sound, echoing around the canopy of a wooded combe in Somerset's Quantock Hills. A series of repeated, one-note calls, followed by a rapid trill often likened to a spinning coin, reveals the presence of a male wood warbler. I peer upwards, scanning the pale green foliage for a pale green bird; and finally catch sight of him, as he searches for tiny insects among the leaves. The wo...