We have cleaned up the breeding sites at the sources of the Biferno River from several quintals of urban waste. It was not uncommon to see trout trying to dig their nest in the gravel between a glass bottle, a can and a tire. Having freed the gravel from much of the waste has certainly given the trout a useful surface for larger reproduction. The cleanup activities will continue and we will soon collaborate with local citizens and associations during days dedicated to biodiversity and river cleaning.