| 1 | Congaree National Park | 🇺🇸 United States | | |
| Eastern Gray Squirrel | |
| Fox Squirrel | |
| 2 | Las Baulas Marine National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 3 | Ostional Wildlife Refuge | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 4 | Poás Volcano National Park | 🇨🇷 Costa Rica | | |
| Red-tailed Squirrel | |
| Variegated Squirrel | |
| 5 | Cabo Blanco Absolute Nature Reserve | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 6 | Chagres National Park | 🇵🇦 Panama | | |
| Red-tailed Squirrel | |
| Variegated Squirrel | |
| 7 | Tikal National Park | 🇬🇹 Guatemala | | |
| Yucatán Squirrel | |
| Deppe's Squirrel | |
| 8 | La Tigra National Park | 🇭🇳 Honduras | | |
| Deppe's Squirrel | |
| Variegated Squirrel | |
| 9 | Cairngorms National Park | 🇬🇧 United Kingdom | | |
| Eurasian Red Squirrel | |
| 10 | Pico Bonito National Park | 🇭🇳 Honduras | | |
| Variegated Squirrel | |
| 11 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| Red-tailed Squirrel | |
| Deppe's Squirrel | |
| 12 | Los Quetzales National Park | 🇨🇷 Costa Rica | | |
| Red-tailed Squirrel | |
| 13 | Main Ridge Forest Reserve | 🇹🇹 Trinidad and Tobago | | |
| Red-tailed Squirrel | |
| 14 | Soberanía National Park | 🇵🇦 Panama | | |
| Red-tailed Squirrel | |
| Variegated Squirrel | |
| 15 | Rincón de la Vieja National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 16 | Calakmul Biosphere Reserve | 🇲🇽 Mexico | | |
| Yucatán Squirrel | |
| Deppe's Squirrel | |
| 17 | Białowieża National Park | 🇵🇱 Poland | | |
| Eurasian Red Squirrel | |
| 18 | Big Cypress National Preserve | 🇺🇸 United States | | |
| Fox Squirrel | |
| Eastern Gray Squirrel | |
| 19 | Chirripó National Park | 🇨🇷 Costa Rica | | |
| Red-tailed Squirrel | |
| Variegated Squirrel | |
| 20 | Arenal Volcano National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| Red-tailed Squirrel | |
| 21 | Gandoca-Manzanillo Wildlife Refuge | 🇨🇷 Costa Rica | | |
| Red-tailed Squirrel | |
| Variegated Squirrel | |
| 22 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica | | |
| Red-tailed Squirrel | |
| Variegated Squirrel | |
| 23 | Piedras Blancas National Park | 🇨🇷 Costa Rica | | |
| Red-tailed Squirrel | |
| Variegated Squirrel | |
| 24 | Yosemite National Park | 🇺🇸 United States | | |
| Western Gray Squirrel | |
| 25 | Tenorio Volcano National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| Deppe's Squirrel | |
| 26 | Carara National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 27 | Biotopo Cerro Cahuí | 🇬🇹 Guatemala | | |
| Yucatán Squirrel | |
| 28 | Great Smoky Mountains National Park | 🇺🇸 United States | | |
| Eastern Gray Squirrel | |
| 29 | Palo Verde National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 30 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | | |
| Allen's Squirrel | |
| Red-bellied Squirrel | |
| 31 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| Red-tailed Squirrel | |
| 32 | Tayrona National Natural Park | 🇨🇴 Colombia | | |
| Red-tailed Squirrel | |
| 33 | Cerro Azul Meámbar National Park | 🇭🇳 Honduras | | |
| Variegated Squirrel | |
| 34 | La Amistad International Park (Panama) | 🇵🇦 Panama | | |
| Red-tailed Squirrel | |
| Variegated Squirrel | |
| 35 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | | |
| Western Gray Squirrel | |
| 36 | Tatra National Park | 🇸🇰 Slovakia | | |
| Eurasian Red Squirrel | |
| 37 | Snowdonia National Park | 🇬🇧 United Kingdom | | |
| Eastern Gray Squirrel | |
| 38 | Volcán Barú National Park | 🇵🇦 Panama | | |
| Red-tailed Squirrel | |
| 39 | Table Mountain National Park | 🇿🇦 South Africa | | |
| Eastern Gray Squirrel | |
| 40 | Merritt Island National Wildlife Refuge | 🇺🇸 United States | | |
| Eastern Gray Squirrel | |
| 41 | Cahuita National Park | 🇨🇷 Costa Rica | | |
| Red-tailed Squirrel | |
| 42 | Shenandoah National Park | 🇺🇸 United States | | |
| Eastern Gray Squirrel | |
| 43 | Masaya Volcano National Park | 🇳🇮 Nicaragua | | |
| Variegated Squirrel | |
| 44 | Tambopata National Reserve | 🇵🇪 Peru | | |
| Southern Amazon Red Squirrel | |
| 45 | Point Pelee National Park | 🇨🇦 Canada | | |
| Eastern Gray Squirrel | |
| 46 | Grand Canyon National Park | 🇺🇸 United States | | |
| Abert's Squirrel | |
| 47 | Everglades National Park | 🇺🇸 United States | | |
| Eastern Gray Squirrel | |
| Fox Squirrel | |
| 48 | Cockscomb Basin Wildlife Sanctuary | 🇧🇿 Belize | | |
| Deppe's Squirrel | |
| 49 | Sian Ka'an Biosphere Reserve | 🇲🇽 Mexico | | |
| Yucatán Squirrel | |
| Deppe's Squirrel | |
| 50 | Lago de Yojoa | 🇭🇳 Honduras | | |
| Variegated Squirrel | |
| 51 | Bavarian Forest National Park | 🇩🇪 Germany | | |
| Eurasian Red Squirrel | |
| 52 | Aigüestortes National Park | 🇪🇸 Spain | | |
| Eurasian Red Squirrel | |
| 53 | Corcovado National Park | 🇨🇷 Costa Rica | | |
| Red-tailed Squirrel | |
| 54 | Tortuguero National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 55 | Machalilla National Park | 🇪🇨 Ecuador | | |
| Guayaquil Squirrel | |
| 56 | Plitvice Lakes National Park | 🇭🇷 Croatia | | |
| Eurasian Red Squirrel | |
| 57 | Manu National Park | 🇵🇪 Peru | | |
| Bolivian Squirrel | |
| Southern Amazon Red Squirrel | |
| 58 | Pyrénées National Park | 🇫🇷 France | | |
| Eurasian Red Squirrel | |
| 59 | Triglav National Park | 🇸🇮 Slovenia | | |
| Eurasian Red Squirrel | |
| 60 | Cañón del Sumidero National Park | 🇲🇽 Mexico | | |
| Red-bellied Squirrel | |
| 61 | Marino Ballena National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 62 | Manuel Antonio National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 63 | Henri Pittier National Park | 🇻🇪 Venezuela | | |
| Red-tailed Squirrel | |
| 64 | Parque Natural Metropolitano | 🇵🇦 Panama | | |
| Variegated Squirrel | |
| 65 | Picos de Europa National Park | 🇪🇸 Spain | | |
| Eurasian Red Squirrel | |
| 66 | Cévennes National Park | 🇫🇷 France | | |
| Eurasian Red Squirrel | |
| 67 | Hohe Tauern National Park | 🇦🇹 Austria | | |
| Eurasian Red Squirrel | |
| 68 | Sierra Nevada National Park | 🇪🇸 Spain | | |
| Eurasian Red Squirrel | |
| 69 | Rocky Mountain National Park | 🇺🇸 United States | | |
| Abert's Squirrel | |
| 70 | Acadia National Park | 🇺🇸 United States | | |
| Eastern Gray Squirrel | |
| 71 | Santa Rosa National Park | 🇨🇷 Costa Rica | | |
| Variegated Squirrel | |
| 72 | Mercantour National Park | 🇫🇷 France | | |
| Eurasian Red Squirrel | |
| 73 | Bastimentos Island National Marine Park | 🇵🇦 Panama | | |
| Red-tailed Squirrel | |
| 74 | Sierra de Guadarrama National Park | 🇪🇸 Spain | | |
| Eurasian Red Squirrel | |
| 75 | Farallones de Cali National Natural Park | 🇨🇴 Colombia | | |
| Red-tailed Squirrel | |
| 76 | Ecrins National Park | 🇫🇷 France | | |
| Eurasian Red Squirrel | |
| 77 | Fertő-Hanság National Park | 🇭🇺 Hungary | | |
| Eurasian Red Squirrel | |
| 78 | Redwood National Park | 🇺🇸 United States | | |
| Western Gray Squirrel | |
| 79 | Wadden Sea National Park | 🇩🇪 Germany | | |
| Eurasian Red Squirrel | |
| 80 | Channel Islands National Park | 🇺🇸 United States | | |
| Fox Squirrel | |