The Large-billed Tern is a distinctive South American tern, notable for its robust, bright yellow bill, which gives the species its name. It is a freshwater specialist, found along major river systems and large lakes. This tern is a powerful flyer and an expert fisher.
Where to spot
Widespread across tropical and subtropical South America, particularly in the Amazon, Orinoco, and Paraná River basins. Inhabits large freshwater rivers, lakes, and flooded savannas.
How to spot
Identify by its large, heavy, bright yellow bill, black cap, white underparts, and grey back. Observe its powerful, direct flight over water. Look for it plunge-diving from a height into rivers and lakes to catch fish. Scan large sandbars for resting flocks.
When to spot
Resident year-round in most of its range, with some local movements tied to water levels. Breeding typically occurs during the dry season when sandbars are exposed for nesting. Best observed during daylight hours along large river systems.
Where to spot
Widespread across tropical and subtropical South America, particularly in the Amazon, Orinoco, and Paraná River basins. Inhabits large freshwater rivers, lakes, and flooded savannas.
How to spot
Identify by its large, heavy, bright yellow bill, black cap, white underparts, and grey back. Observe its powerful, direct flight over water. Look for it plunge-diving from a height into rivers and lakes to catch fish. Scan large sandbars for resting flocks.
When to spot
Resident year-round in most of its range, with some local movements tied to water levels. Breeding typically occurs during the dry season when sandbars are exposed for nesting. Best observed during daylight hours along large river systems.
Credits:
Wikimedia Commons
Credits:
Wikimedia Commons
Credits:
Wikimedia Commons
Credits:
Wikimedia Commons
Credits:
Wikimedia Commons
Credits:
Wikimedia Commons
Credits:
Wikimedia Commons
Credits:
Wikimedia Commons
Credits:
Wikimedia Commons
Unlike many terns that feed in saltwater, the Large-billed Tern is almost exclusively found in large freshwater river systems, a unique niche for a large tern species.
We use cookies to improve your experience on our website. Essential cookies are necessary for basic functionality, while analytical cookies help us understand how visitors use our website so we can improve it.
Cookie Preferences
Customize your privacy settings
Choose which cookies you want to allow. Necessary cookies are always enabled for the basic functionality of the website. You can always change your preferences later via the cookie settings in the footer.
Necessary Cookies
These cookies are essential for the website to function properly and cannot be disabled.
Analytics Cookies
Help us understand how visitors use our website, so we can improve it.