Small inconspicuous warbler live about rivers, wetlands, they are not many know of the person, but everyone has heard them singing, especially fishermen, many of them even believe that if warbler singing will be perfectly good bite. But it is not. Kamyshovok very many, their only in Russia about 10 species and they are so similar friend other that they can often distinguish only on singing. We kamyshovok, like all birds, singing with abandon in the main only males, ready to defend their locality and from predators and competitors from vociferous, from time to time are held true vocal duel. Scientists are amazed each time discovering new talent from all these small and inconspicuous birds. Warbler able to include in his song 10's, and perhaps hundreds of sounds taken from other species.