Great Frigatebird (Fregata minor) lives in tropical ocean and islands across Pantropical. It feeds on fish and squid. Its conservation status is Least Concern.
Fascinating facts about the Great Frigatebird
- The great frigatebird measures 85 to 105 cm in length and spans 205-230 cm, giving it the greatest wing-area-to-body-mass ratio of any bird. This extreme low wing loading means the bird can stay aloft for hours with minimal effort. Researchers think the adaptation lets it ride weak marine thermals that form where tropical air meets warm water. Consequently it can glide vast distances without flapping.
- Great frigatebirds never settle on the sea and, if they do, they struggle to become airborne again. Their exceptionally low wing loading makes water take-offs difficult, reinforcing their habit of staying airborne. They capture prey by snatching fish just below the surface or from the air, often following tuna or dolphin pods that drive schools upward. This foraging style matches their inability to land on water.
- After leaving the nest, fledglings are still fed and protected for a remarkably long time, between 150 and 428 days. The duration varies with ocean conditions, stretching further in poor years such as El Niño events. This extended support makes the great frigatebird the species with the longest post-fledging parental care known among birds. The prolonged feeding helps juveniles develop the flight skills needed for independent hunting.
- A male was recorded travelling 4400 km from Europa Island to the Maldives and remaining there for four months. During that time it fed on local fishing grounds.
- During courtship, males inflate a bright red throat sac into a balloon over a 20-minute period. The slow inflation, combined with head-wagging and calls, draws the attention of passing females.
Sources
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At a glance
RangePantropical
HabitatTropical ocean and islands
DietFish and squid
About the Great Frigatebird
As the Great Frigatebird soars through the tropical skies, its sleek, ebony form cuts effortlessly across the horizon, its expansive wings beating in a slow, hypnotic rhythm that belies the fierce pirate of the air that it is. With a gaze as sharp as the hooked beak that snaps up unsuspecting prey, this master thief patrols the ocean's surface, ever vigilant for the next opportunity to plunder the hard-won catches of its fellow seabirds. In a dazzling display of aerial acrobatics, the Great Frigatebird will pursue its quarry with reckless abandon, its wings tucked tight as it dives and weaves through the turbulent air with a reckless precision that is both beautiful and terrifying to behold.
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