11 In these birds, the nestlings develop one of the following strategies, either dominant or submissive.
The Blue-footed Booby makes no nest, but lays its eggs on bare ground. Sula nebouxii, also known as the Blue-Footed Booby Blue-footed boobies show a frequency-dependent dominant-submissive behavioural strategy. Although the famous mating display might seem comical to humans, the display of foot color provides critical information on a bird’s health and ability to provide for young. One study looked at foot color in relation to the health of young chicks and found that healthiest chicks tended to have fathers with intensely blue feet-possibly an indication of the father’s ability to keep himself well fed. Boobies with bluer feet appear to have more success in finding a mate than birds with duller blue feet. All catch fish in a similar manner, but in different areas: the blue-footed booby does its fishing close to shore, while the masked booby goes slightly farther out, and the red-footed booby. The blue color of Blue-footed Booby’s feet varies in its intensity. The blue-footed and red-footed boobies mate throughout the year, while the masked boobies have an annual mating cycle that differs from island to island. They also flutter the skin of their throats (the gular pouch) by rapidly vibrating bones in their throat, which creates evaporative cooling through the open mouth.
To stay cool in very hot environments, Blue-footed Boobies sometimes defecate on their feet (a behavior called urohydrosis). Boobies on LandĪll half-dozen or so booby species are thought to take their name from the Spanish word “bobo.” The term means “stupid,” which is how early European colonists may have characterized these clumsy and unwary birds when they saw them on land-their least graceful environment. When a typical brood of one to three chicks hatches, both parents feed and care for them. Answers Blue-footed Boobies 2 Passage A Boobies are a small group of seabirds native to tropical and subtropical oceans throughout the world. Blue-footed boobies can also dive from a sitting position on the water's surface.īlue-footed boobies also use their webbed feet to cover their young and keep them warm. However, they do have various distinguishing marks. A male or female with bright blue feet is much more likely to find a mate than a male or female with pale feet. Foot blueness of both genders is key in their mating rituals. 
They fold their long wings back around their streamlined bodies and plunge into the water from as high as 80 feet. If a blue-footed booby has pale feet, it likely means that they are unhealthy. When their prey is in sight, these seabirds utilize the physical adaptations that make them exceptional divers. The bright color comes from a good diet and therefore indicates being a good mating chose. They may fly far out to sea while keeping a keen eye out for schools of small fish, such as anchovies. The brighter the blue, the more likely the female is to be interested. When day breaks, they take to the air in search of seafood, sometimes fishing in cooperative groups. During mating rituals, male birds show off their feet to prospective mates with a high-stepping strut. Like other boobies, blue-foots nest on land at night. Blue-footed boobies are aptly named, and males take great pride in their fabulous feet. The Galápagos Islands population includes about half of all breeding pairs of blue-footed boobies. These boobies live off the western coasts of Central and South America. The bluer the feet, the more attractive the mate.
Also, the passages discuss how the name is originated and their behavior. The passage talks about the small group of seabirds native to tropical and subtropical oceans throughout the world. During mating rituals, male birds show off their feet to prospective mates with a high-stepping strut. This Blue Footed Boobies 2 Reading Answers is extracted from Galapagos Boobies: Blue-footed, Red-footed, and Nazca. Blue-footed boobies are aptly named, and males take great pride in their fabulous feet.
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