Foresters plant too many trees in bare areas destroying the natural habitat of western capercaillie (
Tetrao urogallus).One of the symbols of the Slovak forests, the wood grouse or western capercaillie (
Tetrao urogallus) has been dying out for more than 30 years.
Objects of protection on the territory are the following bird species: Ciconia nigra, Pernis apivorus, Milvus migrans, Circaetus gallicus, Aquila pomarina, Aquila chrysaetos, Buteo ryfinus, Falco peregrinus, Alectoris graeca, Bonasa bonasia,
Tetrao urogallus, Bubo bubo, Glaucidium passerinum, Aegolius funereus, Caprimulgus europaeus, alcedo attis, Picus canus, Dryocopus martius, Dendrocopos medius, Picoides tridactylus, Dendrocopos syriacus, Lullula arborea, Lanius collurio, Lanius minor, Sylvia nisoria, Emberiza hortulana.
The coal mines in question are located inside a Natura 2000 site in Laciana valley, near Villablino, Leon, which is home to several critically endangered species, including brown bear (Ursus arctos) and capercaillie (
Tetrao urogallus).