Bernieria madagascariensis
Silhouette: Sheatherius · PhyloPic
In 3 days ~80% in a week >90%
The long-billed bernieria (Bernieria madagascariensis), formerly known as long-billed greenbul and sometimes as common tetraka or long-billed tetraka, is a songbird species endemic to Madagascar. It is the only species placed in the genus Bernieria. Its natural habitat is subtropical or tropical moist lowland forests.
In 1760 the French zoologist Mathurin Jacques Brisson included a description and an illustration of the long-billed bernieria in the third volume of his Ornithologie based on a specimen collected on the island of Madagascar. He used the French name Le grand figuier de Madagascar and the Latin name Ficedula Madagascariensis Major. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1789 the German naturalist Johann Friedrich Gmelin revised and expanded Carl Linnaeus's Systema Naturae he included the long-billed bernieria based on Brisson's description. He placed it with the flycatchers in the genus Muscicapa and coined the binomial name Muscicapa madagascariensis. The long-billed bernieria is now the only species placed in the genus Bernieria... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ankarafantsika National Park | 🇲🇬 Madagascar | |
| 2 | Ranomafana National Park | 🇲🇬 Madagascar | |
| 3 | Mantadia National Park | 🇲🇬 Madagascar |
Likely
About 40% of wildlife watchers report a Long-billed Bernieria sighting in Ranomafana National Park on a given day, based on 304 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 28th most-seen of the 102 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
July and September–October
In those months about 50% of wildlife watchers report a Long-billed Bernieria in Ranomafana National Park on a given day, against about 20% in March, the lowest month. Those are among Ranomafana National Park's driest months, with about 110 mm of rain a month against 450 mm in January. January and June have too few records to rate.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Long-billed Bernieria sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 3
Of the 3 parks where we can rate Long-billed Bernieria sightings, Ranomafana National Park ranks 2nd at about 40%. The best odds are in Ankarafantsika National Park (Madagascar, about 70%).
Same family: Bernieridae
The closest relatives of the Long-billed Bernieria that you can see in Ranomafana National Park (family Bernieridae, Malagasy Warblers) are Spectacled Tetraka (about 40%), Rand's Warbler (about 40%) and White-throated Oxylabes (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Long-billed Bernieria is recorded against all the birds logged in Ranomafana National Park (304 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
