Length, 50-55 cm; wingspan, 100-120 cm
Estimated at 800-1000 adults
Found in all habitats within its range: from shoreline to bare lava fields, scrub country, deciduous forests and mountain peaks
Galápagos Islands, Ecuador
All for one and one for all. In an arrangement that is rare in the bird world, many Galapagos hawks are polyandrous: several males mate with the same female, then work together to defend the nest and provide food during the nesting period, which takes place once a year. Despite these cooperative strategies, the hawk itself is becoming increasingly rare—it is now extinct on three of the Galapagos Islands where it was once a common sight. One cause is competition for food with feral cats and other predators. Another reason for its steep population decline has been humans, who perceive the powerful raptor as a threat to their poultry and livestock.