frigate bird

1. Nombre del ave

English name: Frigate Bird
Scientific (Latin) name: Fregata

2. Aspecto

Frigate birds are distinctively black, boasting a glossy sheen that gleams in the sun. These birds are identifiable by their long, pointed wings, a deeply forked tail, and a thin, hooked beak. Their feather texture is stiff and firm to the touch, allowing greater maneuverability in the air. Interestingly, males are distinguishable by a unique, bright red, inflatable throat pouch that they puff up during mating season. Females, on the other hand, are larger, with white underparts contrasting their black bodies.

3. Tamaño

Frigate birds are large, with body lengths varying mostly between 69 to 114 cm or 27 to 45 inches. They have an impressive wingspan that dramatically ranges from 1.5 to 2.3 meters — or about 5 to 7.5 feet. Their weight lies between 1 to 1.8 kgs, with females weighing slightly more than males.

4. Hábitat y distribución

Frigate birds are oceanic birds, found primarily across the tropical and subtropical oceans around the world. They inhabit the coasts of the Americas, mainly the Caribbean and Pacific coasts, as well as the tropical regions of the Atlantic and Indian Ocean continents. They favor nesting on remote islands, away from interference and predators.

5. Datos de interés

Frigate birds boast the largest wingspan-to-body-weight ratio, making them excellent at gliding. Despite being seabirds, they avoid landing on the water as their feathers are not waterproof. Also, culturally, they hold a specific symbol to the people of the Galápagos Islands: Seeing one is an omen that predicts good luck in fishing.

6. Dieta

Their diet primarily consists of fish and squid caught while skimming the ocean’s surface with their beaks. Intriguingly, they also indulge in kleptoparasitism, forcefully snatching meals from other birds.

7. Comportamiento y sonidos

Frigatebirds are gliding specialist, spending most of their day soaring in the skies. This flying pattern allows them to spot schools of fish and squid. During courting displays, males inflate their red pouches and clatter their bills while the female flies over. Their sound repertoire mostly includes rattling and drumming noises.

8. Estado de conservación

According to the IUCN Red List, frigatebird species range from Least Concern to Critically Endangered, depending on the species. The five recognized species are the Great Frigatebird (Fregata minor), the Christmas Island Frigatebird (Fregata andrewsi), the Magnificent frigatebird (Fregata magnificens), the Ascension Frigatebird (Fregata aquila), and the Lesser Frigatebird (Fregata ariel).

9. Vida útil

Frigatebirds are known to survive up to approximately 35 years in the wild, a lengthy lifespan attributed to their aerial lifestyle and isolation, minimizing threats.

10. Notas adicionales

In Spanish, the Frigate bird is known as “fragata.” Despite their seafaring namesake, Frigatebirds prefer to avoid water due to their relatively dense plumage, which is unsuited for prolonged periods in the water. They perform a critical role in the ecosystem as bio-indicators, given their high position in the food chain, signaling changes in the environment.

Additionally, their robust flying capability plays a critical role in long-distance pollen and seed dispersal, facilitating the gene flow between plant populations, thus contributing to biodiversity.