Which is the best park to see a Slender-billed Gull?
Saloum Delta National Park
In Saloum Delta National Park, Senegal, about 50% of wildlife watchers report a Slender-billed Gull sighting on a given day, the highest of the 4 parks where we can rate it, from GBIF citizen-science data.
Where else can you see a Slender-billed Gull?
Djoudj National Bird Sanctuary and more
After Saloum Delta National Park, the next-best odds of seeing a Slender-billed Gull are in Djoudj National Bird Sanctuary (Senegal, about 20%), Camargue (France, about 20%) and Doñana National Park (Spain, about 20%). Outside Africa, the best option is Camargue in Europe (about 20%).
When is the best time to see a Slender-billed Gull?
It depends on the park
In the top parks, the best months are January in Djoudj National Bird Sanctuary (about 30%) and May and June in Camargue (about 30%), as the share of wildlife watchers who report a Slender-billed Gull on a given day. Each park's Slender-billed Gull page has the full month-by-month chart.