Date: October 11, 2017
Source: American Ornithological Society Publications Office
Some birds regularly move to new territories between years, depending on factors including habitat quality and the presence of predators, but what about within a single breeding season? Grassland ecosystems are particularly dynamic, continuously shaped by fire and grazing, and a new study confirms that one particular grassland bird moves frequently each summer in search of the best territories. For grasshopper sparrows, the grass really does look greener on the other side.