Seicercus tephrocephalus
Silhouette: Jiekun He · PhyloPic
In 3 days ~10% in a week ~30%
The grey-crowned warbler (Phylloscopus tephrocephalus) is a species of Old World warbler in the family Phylloscopidae. It is found in Bangladesh, China, India, Laos, Myanmar, Thailand and Vietnam. Its natural habitats are temperate forests, subtropical or tropical moist lowland forest, and subtropical or tropical moist montane forest.
The grey-crowned warbler was previously placed in the genus Seicercus. However, a molecular phylogenetic study published in 2018 found that neither Phylloscopus nor Seicercus were monophyletic. In the subsequent reorganization, the two genera were merged into Phylloscopus, which has priority under the rules of the International Commission on Zoological Nomenclature. Wikipedia →
Recording0:59
China · 2023
© Sid Francis · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 2 | Doi Inthanon National Park | 🇹🇭 Thailand |
Rare
Under 5% of wildlife watchers report a Gray-crowned Warbler sighting in Cuc Phuong National Park on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 102nd most-seen of the 159 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
November
In that month about 20% of wildlife watchers report a Gray-crowned Warbler in Cuc Phuong National Park on a given day, against under 5% in January–June and August–October, the lowest months. That is one of Cuc Phuong National Park's driest months, with about 70 mm of rain against 390 mm in August. July has too few records to rate.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Gray-crowned Warbler sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Gray-crowned Warbler sightings, Cuc Phuong National Park has the highest daily chance: under 5%. Next come Doi Inthanon National Park (Thailand, under 5%).
GBIF citizen-science records
It is estimated from how often the Gray-crowned Warbler is recorded against all the birds logged in Cuc Phuong National Park (13 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.
