Plizio Visual Lab
João Vieira Seabird Colonies

Weather…
Water temperature…
The João Vieira islands, located in the southern section of the Bijagós Archipelago, are a sanctuary for seabirds and an essential stopover along the East Atlantic Flyway. These uninhabited islands and their surrounding sandbanks provide handy nesting and resting grounds for a vast array of species, including terns, plovers, and pelicans. During the northern winter months, the area hosts tens of thousands of migratory birds that rely on the archipelago's rich resources to survive. The shallow coastal waters surrounding the islands are teeming with fish, providing a stable food source for the massive avian colonies. Its status as a national park ensures that nesting sites remain largely undisturbed by human activity. The ecological significance of João Vieira extends far beyond national borders, as the birds resting here form ecological links between the Arctic and Southern Africa. For ornithologists, the archipelago is one of West Africa's most spectacular locations to observe and study the behavior and migration of rare seabirds in a completely natural and pristine environment.
- Location: Guinea-Bissau
- Nearby: João Vieira Island (11 km)
Best time to visit & climate
The most pleasant time to visit is Jan, Feb, Apr.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 |
| Rain mm | 0 | 0 | 2 | 0 | 24 | 170 | 441 | 562 | 370 | 194 | 17 | 0 |
📋 Practical info
Geography
Facts
- The islands belong to the protected João Vieira and Poilão National Park.
- They host one of the highest concentrations of migratory birds in the region.
- The site is a major nesting ground for Royal Terns and Caspian Terns.
- Minimal human presence allows for successful avian breeding cycles.
- The surrounding marine area is a biodiversity hotspot.
- João Vieira serves as a vital link in global bird migration patterns.
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Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
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Sights in the town João Vieira Seabird Colonies (1)
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Frequently asked questions
Which bird species can be seen there?
When is the best time for birdwatching?
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Do you need binoculars?
Is it allowed to land on the islands?
João Vieira Seabird Colonies: where is it located?
João Vieira Seabird Colonies: when is the best time to visit?
João Vieira Seabird Colonies: why is it worth visiting?


















