| 1 | Isle Royale National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 2 | Katmai National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 3 | Point Pelee National Park | 🇨🇦 Canada | | |
| Red-breasted Merganser | |
| Common Merganser | |
| 4 | Plitvice Lakes National Park | 🇭🇷 Croatia | | |
| Common Merganser | |
| 5 | Grand Teton National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 6 | Great Bear Rainforest | 🇨🇦 Canada | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 7 | Yellowstone National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 8 | Pacific Rim National Park Reserve | 🇨🇦 Canada | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 9 | Glacier National Park | 🇺🇸 United States | | |
| Common Merganser | |
| 10 | Acadia National Park | 🇺🇸 United States | | |
| Red-breasted Merganser | |
| Common Merganser | |
| 11 | Snowdonia National Park | 🇬🇧 United Kingdom | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 12 | El Vizcaíno Biosphere Reserve | 🇲🇽 Mexico | | |
| Red-breasted Merganser | |
| Common Merganser | |
| 13 | Redwood National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 14 | Cape Breton Highlands National Park | 🇨🇦 Canada | | |
| Red-breasted Merganser | |
| Common Merganser | |
| 15 | Bavarian Forest National Park | 🇩🇪 Germany | | |
| Common Merganser | |
| 16 | Olympic National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 17 | Voyageurs National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 18 | Serra da Canastra National Park | 🇧🇷 Brazil | | |
| Brazilian Merganser | |
| 19 | Jasper National Park | 🇨🇦 Canada | | |
| Common Merganser | |
| 20 | Triglav National Park | 🇸🇮 Slovenia | | |
| Common Merganser | |
| 21 | Gros Morne National Park | 🇨🇦 Canada | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 22 | Kenai Fjords National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 23 | Wadden Sea National Park | 🇩🇪 Germany | | |
| Red-breasted Merganser | |
| Common Merganser | |
| 24 | Chitwan National Park | 🇳🇵 Nepal | | |
| Common Merganser | |
| 25 | Banff National Park | 🇨🇦 Canada | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 26 | Kluane National Park | 🇨🇦 Canada | | |
| Red-breasted Merganser | |
| Common Merganser | |
| 27 | Riding Mountain National Park | 🇨🇦 Canada | | |
| Common Merganser | |
| 28 | Padre Island National Seashore | 🇺🇸 United States | | |
| Red-breasted Merganser | |
| 29 | Cairngorms National Park | 🇬🇧 United Kingdom | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 30 | Channel Islands National Park | 🇺🇸 United States | | |
| Red-breasted Merganser | |
| Common Merganser | |
| 31 | Wood Buffalo National Park | 🇨🇦 Canada | | |
| Common Merganser | |
| 32 | Yosemite National Park | 🇺🇸 United States | | |
| Common Merganser | |
| 33 | Vatnajokull National Park | 🇮🇸 Iceland | | |
| Red-breasted Merganser | |
| 34 | Zion National Park | 🇺🇸 United States | | |
| Common Merganser | |
| 35 | Manas National Park | 🇮🇳 India | | |
| Common Merganser | |
| 36 | Wrangell-St. Elias National Park | 🇺🇸 United States | | |
| Common Merganser | |
| 37 | Merritt Island National Wildlife Refuge | 🇺🇸 United States | | |
| Red-breasted Merganser | |
| 38 | Great Smoky Mountains National Park | 🇺🇸 United States | | |
| Common Merganser | |
| 39 | Gauja National Park | 🇱🇻 Latvia | | |
| Common Merganser | |
| 40 | Grand Canyon National Park | 🇺🇸 United States | | |
| Common Merganser | |
| 41 | Nikko National Park | 🇯🇵 Japan | | |
| Common Merganser | |
| 42 | Rocky Mountain National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 43 | Biebrza National Park | 🇵🇱 Poland | | |
| Common Merganser | |
| 44 | Camargue | 🇫🇷 France | | |
| Red-breasted Merganser | |
| 45 | Royal Manas National Park | 🇧🇹 Bhutan | | |
| Common Merganser | |
| 46 | Royal Bardia National Park | 🇳🇵 Nepal | | |
| Common Merganser | |
| 47 | Denali National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 48 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico | | |
| Red-breasted Merganser | |
| 49 | Kiskunság National Park | 🇭🇺 Hungary | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 50 | Death Valley National Park | 🇺🇸 United States | | |
| Red-breasted Merganser | |
| 51 | Shenandoah National Park | 🇺🇸 United States | | |
| Common Merganser | |
| Red-breasted Merganser | |
| 52 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | | |
| Common Merganser | |
| 53 | Elk Island National Park | 🇨🇦 Canada | | |
| Common Merganser | |
| 54 | Everglades National Park | 🇺🇸 United States | | |
| Red-breasted Merganser | |
| 55 | Ciénaga de Zapata | 🇨🇺 Cuba | | |
| Red-breasted Merganser | |
| 56 | Namdapha National Park | 🇮🇳 India | | |
| Common Merganser | |
| 57 | Celestún Biosphere Reserve | 🇲🇽 Mexico | | |
| Red-breasted Merganser | |
| 58 | Fertő-Hanság National Park | 🇭🇺 Hungary | | |
| Common Merganser | |