Best National Parks to See Diverse Mammals and Birds

Exploring national parks offers an unparalleled opportunity to witness nature’s most diverse and fascinating creatures. Whether a seasoned wildlife enthusiast or a casual nature lover, national parks provide rich ecosystems where one can observe a wide array of mammals and birds in their natural environments. This article highlights some of the best national parks across the globe renowned for their mammal and bird diversity, providing valuable insights for your next wildlife adventure.

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Grand Canyon National Park

Grand Canyon National Park is celebrated not just for its breathtaking vistas but also for its extraordinary biodiversity. Spanning various elevations and climates, it hosts a unique blend of ecosystems that shelter an impressive array of wildlife. The park ranks highest for bird-watching with 447 bird species, including the endangered California condor, peregrine falcon, and red crossbill. Mammal diversity is also remarkable, with 91 species such as American bison, desert bighorn sheep, mountain lions, and the elusive Mexican gray wolf. Visitors might also encounter reptiles like the pink-colored Grand Canyon rattlesnake and fascinating invertebrates.[1][7]

Great Smoky Mountains National Park

Nestled in the Appalachian Mountains, the Great Smoky Mountains National Park is the most biodiverse park in the U.S., boasting over 2,200 plant species and more than 600 animal species. It is famous especially for its bird and mammal populations, hosting around 107 mammal species including a large resident population of black bears and rare sightings of elk and white-tailed deer. The moist, forested environment also supports 30 varieties of salamanders, making it a global hotspot for amphibian diversity. Bird enthusiasts can enjoy the chorus of songbirds and, notably in June, a spectacular display by synchronous fireflies unique to this region.[3][5][7]

Yellowstone National Park

Yellowstone is often called the American Serengeti due to its vast, sprawling landscapes and rich wildlife. It supports 67 different mammal species including bison, elk, grizzly and black bears, wolves, mountain lions, and pronghorn antelope. The park is also home to a rich bird population including bald eagles and trumpeter swans. Yellowstone’s large size and protected status make it a prime destination for spotting large mammals in the wild. The reintroduction of gray wolves in 1995 has been a marquee conservation success leading to a revitalized ecosystem.[5][7]

Redwood National Park

Redwood National Park, known for towering ancient trees, also ranks highly for mammal diversity, boasting 85 species including Virginia opossums, river otters, and the impressive Roosevelt elk. It also supports a variety of amphibians such as pond turtles and Foothill yellow-legged frogs. For bird watchers, the park’s dense forests and coastal environment provide habitats for a variety of species that thrive in this lush landscape. The park is an excellent destination for those interested in diverse ecosystems packed into one area.[7]

Glacier National Park

Often called the “Backbone of the World” by Indigenous peoples, Glacier National Park features glacier-carved mountains, pristine forests, and over 270 bird species including bald and golden eagles. It hosts one of North America’s largest grizzly bear populations along with lynx, mountain lions, moose, and mountain goats. The park’s varied topography offers excellent opportunities to see mammals and birds in rugged, natural habitats. Popular wildlife viewing spots include Garden Wall for grizzlies and streams for moose.[5][7]

Olympic National Park

Olympic National Park, located in Washington State, offers one of the most diverse ecosystems in the world across its mountainous, coastal, and temperate rainforest environments. It protects 66 mammal species including elk, black bears, white-tailed deer, and bobcats. Birdlife is equally impressive with around 200 bird species, accompanied by native fish and a variety of amphibians such as 30 salamander species. The park is a paradise for observing a wide spectrum of wildlife due to its wide range of habitats and microclimates.[9]

Big Bend National Park

Big Bend National Park in Texas is noted for its remarkable reptile diversity, but it is also valuable for spotting mammals and birds that thrive in desert and mountainous environments. The park hosts bighorn sheep, mountain lions, and is a vital sanctuary for various bird species including raptors and songbirds. This park’s unique location along the U.S.-Mexico border provides fascinating wildlife interactions not seen in many other national parks.[7]


These national parks represent some of the richest and most diverse habitats where wildlife lovers can observe mammals and birds in their natural settings. Each park offers unique species and viewing experiences shaped by their particular environments and conservation efforts. For anyone passionate about wildlife, planning visits to these parks can lead to unforgettable encounters with nature’s wonders. Prepare well, be patient, and respect wildlife to maximize your experience in these extraordinary wildlands.[1][3][9][5][7]

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