Red-footed Booby vs Brown Booby

In short

The Red-footed Booby and Brown Booby are both large seabirds, but they can be distinguished by their plumage and leg color. Red-footed Boobies have distinctive red legs and can vary in color from all white to dark brown, while Brown Boobies have brown bodies with white underparts and yellow legs.

Identification tips

1. Look for red legs on the Red-footed Booby, a key distinguishing feature. 2. Observe the plumage color: Red-footed Boobies can be all white or dark brown, while Brown Boobies have a consistent brown and white pattern. 3. Note the habitat: Red-footed Boobies are often seen far out at sea, whereas Brown Boobies are more coastal. 4. Consider the size and build: Brown Boobies are slightly larger and more robust.

Size

Both species are similar in size, but the Brown Booby is slightly larger and more robust.

Plumage

Red-footed Boobies exhibit a variety of color morphs, ranging from all white with black primaries to entirely dark brown, and have red legs. Brown Boobies have a consistent brown body with a white belly and yellow legs.

Behaviour

Both species perform plunge-diving to catch prey, but the Red-footed Booby is more likely to forage over deeper waters, while the Brown Booby often stays closer to shore.

Habitat

Red-footed Boobies are more pelagic, often found far from land, while Brown Boobies prefer nesting on islands with flat, exposed areas close to the coast.