Blue: area of occupancy in 2000. Red: territory in the early 1980s1
Trends of Cantabrian capercaillie occupancy in Asturias, mapped in a 1km2 grid. Green cells indicate capercaillie presence in the early 1980's1, blue cells indicate occupancy in 2000-2001, and red cells indicate recent occupancy (2005 - 2007 survey)
1As is often the case, recent data are more precise
