Although common on Guam as recently as the early 1970s, the Flycatcher's population went into a rapid decline due to predation by the brown tree snake, Boiga irregularis, which was introduced to the island in the 1940s. The last sighting of the flycatcher was in 1983.
The Guam Flycatcher is classified as Extinct (EX), there is no reasonable doubt that the last individual has died.
The Guam Flycatcher (Myiagra freycineti) was a species of bird in the Monarchidae family. It was endemic to Guam. Although common on Guam as recently as the early 1970s, the Flycatcher's population went into a rapid decline due to predation by the brown tree snake, Boiga irregularis, which was introduced to the island in the 1940s. The last sighting of the flycatcher was in 1983. More
Habitat and Natural History: The Guam flycatcher was secretive. It lived in limestone and ravine forests, mangroves and tangantangan thickets. It was most often seen marking aerial forays to hawk its food of small insects on the wing. Pairs nested up to three times a year. One or two eggs were placed on a nest of twigs, roots, grass and leaves held together by spider webs. Eggs were cream colored with a band of brown spots. Both parents tended the young, which fledged in about twenty days. More
The Guam Flycatcher was once widespread in the forested parts of the island. Around 1970 the population crashed and the species became extinct in 1983, due to the Brown Tree Snake which easily raids nests high in the trees. Conservation measures on Guam are directed mainly at preventing the snake from spreading to neighbouring islands. Nonetheless the Brown Tree Snake has already been seen on some of them, but so far appears to have established itself only on Guam. More
Once widespread and relatively conspicuous, the Guam flycatcher was small in size and driven to extinction early by the brown Treesnake. Painting of bird species Rallus owstoni, Guam rail. Permission granted by D. Pratt.Rallus owstoni * Guam rail Ko'ko' (Guam) A flightless bird, endemic to Guam, the Guam rail disappeared from southern Guam in the early 1970s and was extirpated from the entire island by the late 1980s. More
The Guam Flycatcher, also known as the Guam Broadbill, was found only on the island of Guam. It was last seen in 1984. - The smaller bird species that were restricted to the forest habitats were the first to disappear. Although Brown Tree Snakes may grow to more than eight feet in length, smaller specimens are more common and prefer smaller prey items. The tiny Bridled White-eye had an unfortunate habit of sleeping shoulder to shoulder in its nocturnal roosts. More
extinct, including the Guam flycatcher (Myiagra freycineti), which was common on the Pacific island of Guam until the 1970s but crashed to extinction in 1983 as a result of predation by the introduced brown tree snake (Boiga irregularis). Significance to humans None known. More
Guam Flycatcher Myiagra freycineti is almost certain extinct trip reports Travelling Birder http://www.travellingbirder.com The Travellingbirder.com birding trip report search engine guides you to 7,000+ birding trip reports on the Internet. You can search for trip reports from a specific country and time of year. Not all these reports are in English. More
Guam flycatchers, also known as Guam boatbills, were exterminated, killed off, by the introduction of brown tree snakes. Guam has no native snakes, so these snakes quickly multiplied and began to feed on native birds, including Guam flycatchers. The native birds did not have time to develop a defensive strategy as they would have done if they had been exposed to other predatory snakes in their territories over a long period of time. More
prey, the Guam flycatcher became extinct in 1980) * Disease * Hunting and collecting (the Javan rhino) More