Week14 Draft2

Since its establishment in 1872, Yellowstone has kept records of its bird sightings. In their documents include almost three hundred bird species. Among the birds are raptors, shorebirds, waterfowl, and songbirds. Half of those species next within Yellowstone itself though many of the birds are also migratory. The species reproduction, habitat use, and abundance are monitored in effort to inform the park's caretakers of climate change's effect on the ecosystem. Birds are therefore also good indicator species of the shifts in rising temperatures and seasonal changes. For example, climate change has led to changes from population size, to timing of reproduction and migration patterns.