Bernieria madagascariensis
Silhouette: Sheatherius · PhyloPic
In 3 days ~70% 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 |
Possible
About 30% of wildlife watchers report a Long-billed Bernieria sighting in Mantadia National Park on a given day, based on 154 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 41st most-seen of the 98 birds we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
May
In that month about 60% of wildlife watchers report a Long-billed Bernieria in Mantadia National Park on a given day, against about 20% in June and December, the lowest months. That is one of Mantadia National Park's driest months, with about 80 mm of rain against 340 mm in January. January to April 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.
3rd of 3
Of the 3 parks where we can rate Long-billed Bernieria sightings, Mantadia National Park ranks 3rd at about 30%. The best odds are in Ankarafantsika National Park (Madagascar, about 70%) and Ranomafana National Park (Madagascar, about 40%).
Same family: Bernieridae
The closest relatives of the Long-billed Bernieria that you can see in Mantadia National Park (family Bernieridae, Malagasy Warblers) are Rand's Warbler (about 50%), Spectacled Tetraka (about 30%) 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 Mantadia National Park (154 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.
