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SPECIES PROFILE

Blue-footed Booby (Sula nebouxii)

Sula

IUCN STATUS

Least Concern

Blue-footed Booby (Sula nebouxii) — Pacific coast from California to Peru; major colonies on Gulf of California islands and the Galápagos

CONSERVATION STATUS

Least Concern

CLASS

Aves

GEOGRAPHICAL RANGE

Pacific coast from California to Peru; major colonies on Gulf of California islands and the Galápagos

DIET

Carnivore

HABITAT

Open ocean and coastal areas; nests on flat or gently sloping ground on offshore islands; roosts on cliffs and rocky shores

🔬 Classification

PHYLUM

Chordata

CLASS

Aves

ORDER

Suliformes

FAMILY

Sulidae

GENUS

Sula

📋 Description

SIZE

81–91 cm; wingspan 150 cm; 1.5 kg

COLORATION

White body with brown wings and back; bright turquoise-blue feet distinctive; long pointed bill; blue-rimmed eyes

ADAPTATIONS

Vibrant blue feet signal health and fitness to mates — males perform exaggerated high-stepping dances to display them; plunge-dives from 24 m into the sea at 100 km/h

🌿 Ecology

HABITAT

Open ocean and coastal areas; nests on flat or gently sloping ground on offshore islands; roosts on cliffs and rocky shores

DIET

Carnivore

GEOGRAPHIC RANGE

Pacific coast from California to Peru; major colonies on Gulf of California islands and the Galápagos

REPRODUCTION

Lays 1–3 eggs directly on bare ground; incubates by covering eggs with its large warm feet; chicks hatch altricial; siblicide common in three-egg clutches

DIET DETAILS

Small schooling fish caught by spectacular plunge-diving from height; often hunts cooperatively in flocks over fish schools driven to the surface by tuna and dolphins

⚠️ Threats & Conservation

PRIMARY THREATS

Habitat disturbance at nesting colonies; human collection of eggs and adults; decline of prey fish from overfishing; introduced predators on nesting islands

💡 Interesting Facts

1

The Blue-footed Booby's vivid turquoise feet are a reliable indicator of health — females consistently choose males with the brightest feet, and artificially painted dull feet reduce mating success.

2

The word "booby" comes from the Spanish "bobo" meaning stupid or clown — a reference to the birds' apparent tameness around humans and their comical courtship dances.

🔭 Sighting Guide

📍 BEST PLACES TO SIGHT

Isla San Pedro Mártir in the Gulf of California, Sonora, has one of Mexico's largest Blue-footed Booby colonies

Isla Raza near Bahía de los Ángeles, BCN, has large seabird colonies including Blue-footed Boobies

Bahía de los Ángeles, BCN, provides boat access to offshore islands with nesting Blue-footed Boobies

🗓️ BEST TIME TO SIGHT

Year-round on Gulf of California islands; breeding displays with high-stepping foot shows visible May to July at Isla de la Plata and Pacific coastal islands.

🎯 SIGHTING TIPS

Year-round on islands in the Gulf of California; Isla San Pedro Mártir and Isla Raza have colonies; May to July for courtship foot-display dances.