Sentences with word «frigatebirds»

[2][3] A population of magnificent frigatebirds once bred on the Cape Verde Islands but is now probably extinct.

Scientists built miniature devices to measure avian head movement, brain electrical activity and GPS location, and they attached them — almost like hats and backpacks — to great frigatebirds of the Galapagos Islands in Ecuador.

Scenic Highlights: One night on Santa Cruz, three nights cruising through the Galápagos National Park aboard the Xavier, visit to see the giant tortoises, watching three species of boobies and two species of frigatebirds nesting together at Punta Pitt, snorkelling with rays and sea turtles in the shadow of Kicker Rock, witnessing the towering volcanic cliffs and the dark - sand beaches of Santiago island.

Scientists monitored the head movements and brain activity of flying frigatebirds, confirming for the first time that the birds could sleep midflight.

[42] In 2003, a survey of the four colonies of the critically endangered Christmas Island frigatebirds counted 1200 breeding pairs.

Half Moon Caye is a strictly protected refuge for schnäbelnde red - footed boobies and magnificent frigatebirds in love, which can provide in heavenly peaceful neighborhood for the undisturbed preservation of its kind here.

Unlike other birds, most of which avoid clouds because of their turbulence, frigatebirds seem to seek them out to ride on the strong updrafts under cumulus clouds in the open ocean to gain altitude.

Soaring over a throng of males who immediately inflate their throats like red balloons to show off their virility, a female frigatebird lands next to the one with the biggest and reddest throat and offers him her companionship.

A nature trail winds its way through the rocky terrain of North Seymour Island and to the magnificent frigatebird nesting colony.

As frigatebirds normally breed every other year, the total adult population was estimated to lie between 1800 and 3600 pairs.

Not only a great place to see local island life, you will also see large frigatebirds, pelicans, and sea lions attracted by the fish.

[38][59] The population of the vulnerable Ascension frigatebird has been estimated at around 12,500 individuals.

This is a great place to see frigatebirds, pelicans, iguanas, and the different boobies.

The predators chase smaller creatures up to the surface, where frigatebirds can snatch them.

Since frigatebirds can't take a break in the water, they have to snooze on the wing.

Weimerskirch's team tracked the migrations of 49 frigatebirds native to Europa Island in the Mozambique Channel throughout the Indian Ocean using tiny data loggers.

Determining how frigatebirds function with so few Zs could help researchers better understand and combat sleep loss in humans.

Bold frigatebirds dive - bomb swimming pools for a drink.

Christopher Columbus encountered magnificent frigatebirds when passing the Cape Verde Islands on his first voyage across the Atlantic in 1492.

Cormorants, black hawks, and frigatebirds flit in and out of the shadows while pink flamingos create a vivid backsplash.

A stunning secluded local beach well off the tourist trail, we snorkeled close enough to touch enormous sea turtles, were slapped around under water by playful sea lions, and swam through schools of sharks, rare coral, and colorful fish while blue - footed boobies and frigatebirds circled overhead.

Mid-flight sleeping also occurred almost exclusively at night even though frigatebirds on land can sleep during the daytime.

To record brain activity, the team attached a small device to the heads of frigatebirds while they were still on land.

Headed by neurophysiologist Niels Rattenborg, the international team of researchers that authored the study spent time in the Galápagos Islands monitoring the brain activity of great frigatebirds (Fregata minor).

The team predicted that the flying frigatebirds would exhibit unihemispheric slow wave sleep (USWS), a phenomenon in which animals sleep with only one hemisphere of the brain at a time, allowing them to keep one eye open to watch out for potential threats.

Christmas Island frigatebird (Fregata andrewsi) This fork - tailed seabird, pictured, has just one breeding colony on cyclone - prone Christmas Island.

You can even spot sea lions, Sally Lightfoot crabs, marine iguanas, pelicans, and frigatebirds from the Red Mangrove deck.

See the famous giant tortoises, large frigatebirds, blue - footed boobies, sea lions, penguins, marine iguanas, and sea turtles.

Frigatebirds in flight tend to use one hemisphere at a time to sleep, as do ducks and dolphins, but sometimes they used both.

After a safety briefing, enjoy a circumnavigation of Daphne Major, a paradise for sea birds such as magnificent frigatebird.

By examining the genes of a Hawaiian population of frigatebirds, researchers found that females prefer to mate with males who have a set of proteins called major histocompatability complex (MHC) markers that are genetically different from their own, regardless of whether the two love birds are related.

The scientists got a close look at the frigatebirds» airborne lives by attaching tiny data loggers to 49 birds.

Unlike other long - distance travelling seabirds like albatrosses, frigatebirds» feathers lack waterproof oil so they can't take a break on the sea.

Species: Great frigatebird, Fregata minor Habitat: Breeds on tropical islands in the southern Pacific, Indian, and Atlantic oceans; feeds on fish and squid in the open ocean

In total, the frigatebirds climbed an average of 15.4 kilometres a day — that's more one and a half times the height of Mount Everest.

But climate change will shift atmospheric currents in the tropics, which could endanger the frigatebird's migratory strategy, says Rob Suryan of Oregon State University.

Frigatebirds» ability to survive for long periods on less than an hour of naptime per day is remarkable considering how badly sleep deprivation affects other species, says Rattenborg.

The frigatebird's migratory behaviour is unique among birds: while most birds avoid clouds because of their turbulence, frigatebirds seem to seek them out.

The great frigatebird's ability to fly for weeks without a break has mystified scientists.

Frigatebirds can't swim on the ocean, as they lack waterproof feathers, so the ability to dramatically cut down on sleep may have evolved out of necessity, says John Lesku at La Trobe University, Australia.

Great frigatebirds, for example, can fly continuously for up to two months.

Now Weimerskirch's team has cracked the frigatebird's secrets by tracking the migrations of birds native to Europa in the Mozambique Channel, off the coast of south - east Africa, all over the Indian ocean and as far east as South - East Asia.

To settle this question, Niels Rattenborg at the Max Planck Institute for Ornithology in Seewiesen, Germany, and his colleagues fitted small brain activity monitors and movement trackers to 14 great frigatebirds.

«Frigatebirds are really strange,» says Henri Weimerskirch at the Centre for Biological Studies, Chizé, France.

«These frigatebirds do it intentionally,» Weimerskirch says.

«Frigatebirds are really strange in many aspects of their life history,» says Henri Weimerskirch at the Centre for Biological Studies, Chizé, France.

The great frigatebirds can fly for weeks without a break, mostly cruising over the ocean looking for food near the surface.

«Our team compared the precision of drone - derived image counts with those made at the same time by human counters on the ground for colonies of three types of seabird: frigatebirds, terns and penguins.