Which is the best park to see a Violet-green Swallow?
Nahanni National Park
In Nahanni National Park, Canada, about 60% of wildlife watchers report a Violet-green Swallow sighting on a given day, the highest of the 18 parks where we can rate it, from GBIF citizen-science data.
Where else can you see a Violet-green Swallow?
Grand Canyon National Park and more
After Nahanni National Park, the next-best odds of seeing a Violet-green Swallow are in Grand Canyon National Park (United States, about 40%), Rocky Mountain National Park (United States, about 40%) and Yellowstone National Park (United States, about 40%).
When is the best time to see a Violet-green Swallow?
It depends on the park
In the top parks, the best months are May and June in Grand Canyon National Park (about 80%) and July in Rocky Mountain National Park (about 80%), as the share of wildlife watchers who report a Violet-green Swallow on a given day. Each park's Violet-green Swallow page has the full month-by-month chart.