Ploceus megarhynchus
Silhouette: Sheatherius · PhyloPic
In 3 days ~60% in a week ~90%
Finn's weaver (Ploceus megarhynchus), also known as Finn's baya and yellow weaver, is a weaver bird species native to the Ganges and Brahmaputra valleys in India and Nepal. Two subspecies are known; the nominate subspecies occurs in the Kumaon area and salimalii in the eastern Terai.
The species was described and given its binomial name by Allan Octavian Hume based on a specimen obtained at Kaladhungi near Nainital. The species was called "Eastern baya" by Oates in 1889 and called Finn's baya after Frank Finn by E. C. Stuart Baker in 1925. Finn's weaver was first observed in Shuklaphanta National Park in May 1996 and is a regular summer visitor.
Finn's weaver breeds from May to September. It builds a nest on top of trees or in reeds. The nest is different in structure from the other weaver species found in India, but as in other weavers, woven from thin strips of leaves and reeds. This species lines the entire inside of the nest, unlike the other weavers, which line only the floor of the nest. Males strip the leaves of the nest tree, making the globular nests clearly visible. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manas National Park | 🇮🇳 India |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Yellow Weaver sighting in Manas National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 51st most-seen of the 377 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
June
In that month about 40% of wildlife watchers report a Yellow Weaver in Manas National Park on a given day, against under 5% in November, the lowest month. That is one of Manas National Park's wettest months, with about 1070 mm of rain against 10 mm in December. July to September have too few records to rate.
Between 4 and 7 am
Across all the parks we cover, that three-hour window holds the most Yellow Weaver sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Only Manas National Park, in our data
Manas National Park is the only park on Wallace's Line with enough records to rate Yellow Weaver sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Yellow Weaver is recorded against all the birds logged in Manas National Park (12 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.
