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Grand Canyon National Park Prairies and Grasslands
Grassland communities in Grand Canyon are rare and few. Mountain meadows on the North Rim are of two types: montane meadows and upland subalpine grasslands. Both are typified by many grass species, with sedges in the wettest areas and forbs and grasses along the dry margins. Semi-desert shrub-grasslands occur at Toroweap Valley and above the Grand Wash Cliffs. These areas are characterized by big galleta, blue and black grama, Indian ricegrass, and three-awns.
Maine ocean islands provide the only nesting sites for Atlantic puffins in the United States. Eastern Egg Rock in the midcoast region, Seal Island and Matinicus Rock at the mouth of Penobscot Bay, and Machias Seal Island and Petit Manan Island off the downeast coast provide habitat for more than 4,000 puffins each summer.