warbler

Britain is home to many small, skulking, inconspicuous warblers that superficially look very similar to one another. Drab, nondescript and unmemorable, they are the ultimate ‘little brown jobs’ – small seed- or bug-eating passerines of unexceptional shape or colouring. The wood warbler, willow warbler and chiffchaff, in particular, are very hard to tell apart from their physical appearance alone, providing a challenge for even expert birdwatchers.