Brown Pelican

Overview

The brown pelican (Pelecanus occidentalis) is the smallest of the world’s eight pelican species and the only one that hunts by plunge-diving: it climbs to 10–20 m above the water surface and drops bill-first, the distensible throat pouch acting as a net. Adults are large birds — wingspan around 2.1–2.3 m — with a chocolate-brown body, creamy-white head, and, in breeding condition, a chestnut-red neck. They weigh 2–5 kg, roughly half the mass of the American white pelican that occasionally overlaps in Costa Rica.

The species was listed as Endangered in the United States in 1970 after DDT caused catastrophic breeding failures through eggshell thinning. After the 1972 DDT ban, populations recovered dramatically; the IUCN currently rates the species Least Concern, and the estimated global population runs to several million individuals.

Why Tortuguero

Tortuguero sits at the mouth of the Río Tortuguero, where river meets Caribbean — exactly the type of estuary-and-open-coast habitat brown pelicans prefer. The village beach and the canal entrance are reliable spots to watch them; groups of 10–30 birds are normal at the river mouth year-round, and the spectacle of coordinated plunge-diving over incoming baitfish schools is one of the park’s most reliably dramatic wildlife moments. The species does not nest in Tortuguero (nearest known colonies are on offshore islands), but roosting and foraging birds are present daily.

How to see them (honestly)

• Arrive at the river mouth or the beach near the park entrance at dawn — pelicans begin foraging at first light.
• Look for groups circling 10–20 m above flat water before folding into dives; the splash is audible from some distance.
• They often rest on the posts and driftwood at the dock — at close range you can see the throat pouch and the subtle breeding plumage coloration.
• No specialist guiding needed; this is one of Tortuguero’s most straightforward bird sightings.

Status note

Globally Least Concern with a stable or recovering population trend. In Costa Rica the species is unprotected as a game species outside park boundaries, but no significant harvest pressure exists. Oil spills on the Caribbean coast remain the principal acute threat. Within Tortuguero National Park the birds are safe; the estuary is productive and relatively clean by regional standards.