Grassland bird species continue to decline steeply across North America. Road-based surveys such as the North American Breeding Bird Survey (BBS) are often used to estimate trends and population sizes and to build species distribution models for grassland birds. although roadside survey counts may introduce bias in estimates because of differences in habitats along roadsides and in of... https://chefesquipmenters.shop/product-category/undercounter-ice-makers/