The male has a striking red gular sac which he inflates to attract a mate. The magnificent frigatebird is a large, lightly built seabird with brownish-black plumage, long narrow wings and a deeply forked tail. There are also populations on the Galápagos Islands in the Pacific and the Cape Verde islands in the Atlantic. It occurs over tropical and subtropical waters off America, between northern Mexico and Perú on the Pacific coast and between Florida and southern Brazil along the Atlantic coast. With a length of 89–114 centimetres (2 ft 11 in – 3 ft 9 in) and wingspan of 2.17–2.44 m (7 ft 1 in – 8 ft 0 in) it is the largest species of frigatebird. Chicago: University of Chicago Press, 1983.The magnificent frigatebird ( Fregata magnificens) is a seabird of the frigatebird family Fregatidae. Chicago: University of Chicago Press, 1983. The Magnificent Frigatebird eats mostly fish and squid, but is also a natural predatory threat to hatchling sea turtles on the beach.Īn adult male is 91 cm long and weighs 1.2 kg it is smaller than the adult female, measuring 111 cm, and weighing 1.7 kg. These birds can live for more than 40 years, but their populations struggle with habitat destruction and human-introduced predators, such as cats. They have a single egg which is large and fragile and requires 55 days of incubation before hatching the hatchling grows slowly, relying on the parents for food for 6 months while it is in the nest, and after it fledges, the young still returns nightly for food for 14 more months, giving the frigatebird the longest known chick dependence in the world. They both aggressively guard the nest and share the incubation and feeding duties. The male brings the female materials, and she constructs the nest. These consist of twig platforms in the upper branches of trees where there are consistent winds to help them take off after they land often a colony will be on a slope or an offshore island. They also build nests in colonies of up to 10,000 pairs of parents. The frigatebird is also frequently guilty of kleptoparasitism, and regularly steals food from other birds.įrigatebirds may amass near fishing boats and towns, looking for offal to eat. It soars high in the air over the shore or coastal waters, but not usually far out over the ocean once it sees flying fish or squid near the surface, it swoops down and snatches them-but never actually enters the water. It rests on tall trees on the shore or cliffs, as well as on ship rigging. As a result, this bird lives largely constrained to heights. Although the frigatebird can land and take off again, this can be difficult. The Magnificent Frigatebird has the lowest wing loading of any known bird, meaning its wings are extraordinarily long for its size and weight-it can have a wingspan of 2 meters. Juveniles have a white head and breast, a striking pale bar on the wing, and a pale blue bill, orbital skin, and feet. The female has a grayer gular pouch, a white breast, a paler brown bar on the wing, and orbital skin around the eye that is violet-blue. The male has a gular pouch (a throat pouch to accommodate large fish) that can be bright pink to red. Its solid black form makes a bold outline against the sky, although it also has a faint brown bar across the upper wing, black or brown feet, and a gray bill. This bird has a distinctive profile, with a deeply forked tail and extremely long, slender and pointed wings. The most abundant species of frigatebirds, the Magnificent Frigatebird is exclusively oceanic, found in all tropical areas of the world. On the Pacific side of the Americas, the Magnificent Frigatebird is present between Baja, California and Peru as well as in the Galapagos on the Atlantic coast, it lives in the Caribbean and the Gulf of Mexico. This oceanic bird fishes over tropical coastal waters in Atlantic and Pacific oceans and roosts in coastal trees.
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