Others, such as Little Owls, Northern Saw-whet Owls, and Great Horned Owls, are holding their own in the face of change. But many owl species are at risk from the disappearance of the big old-growth trees that once harbored their nesting hollows and the vast meadows and grasslands that served as their hunting grounds, from the threat of invasive species and rodenticides, and from the widespread effects of climate change.
