Which is the best park to see a Caspian Tern?
Rottnest Island
In Rottnest Island, Australia, about 70% of wildlife watchers report a Caspian Tern sighting on a given day, the highest of the 13 parks where we can rate it, from GBIF citizen-science data.
Where else can you see a Caspian Tern?
Padre Island National Seashore and more
After Rottnest Island, the next-best odds of seeing a Caspian Tern are in Padre Island National Seashore (United States, about 50%), West Coast National Park (South Africa, about 40%) and De Hoop Nature Reserve (South Africa, about 40%). Outside Oceania, the best options are Padre Island National Seashore in North America (about 50%), West Coast National Park in Africa (about 40%) and Ciénaga de Zapata in Central America (about 30%).
When is the best time to see a Caspian Tern?
It depends on the park
In the top parks, the best months are August in Rottnest Island (about 90%), June and July in Padre Island National Seashore (about 80%) and October in West Coast National Park (about 60%), as the share of wildlife watchers who report a Caspian Tern on a given day. Each park's Caspian Tern page has the full month-by-month chart.