Abstract: The validity of the threat status assigned to a species by the International Union for Conservation of Nature’s (IUCN) Red List relies heavily on the accuracy of the geographic range size estimate for that species. Range maps used to assess threat status often contain large areas of unsuitable habitat, thereby overestimating range and underestimating…
We know that grassland habitats are important for the birds we love to watch throughout the summer. Bluebirds and swallows in particular prefer the view from their nest box or tree cavity to be an open, grassy expanse complete with wildflowers and insects. And in order to maintain this picturesque “early-successional” habitat for our avian…