| − | The overall population of the burrowing owl is currently classified as least concern by the IUCN. However, there are declines in some areas of its range. Between 1966 and 2000, for example, the breeding stock decreased by an annual average of 1.2 percent, with one of the causes a decline in prairie dog population. Especially in the Great Plains of the United States, burrowing owls used particularly frequently abandoned ground caves of prairie dogs on the edge of prairie dog colonies, and were simultaneously exposed to a somewhat reduced pressure of predators.<Johnsgard, pg. 74><> | + | The overall population of the burrowing owl is currently classified as least concern by the IUCN. However, there are declines in some areas of its range. Between 1966 and 2000, for example, the breeding stock decreased by an annual average of 1.2 percent, with one of the causes a decline in prairie dog population. Especially in the Great Plains of the United States, burrowing owls used particularly frequently abandoned ground caves of prairie dogs on the edge of prairie dog colonies, and were simultaneously exposed to a somewhat reduced pressure of predators.<ref>Johnsgard, pg. 74</ref> |