Locustella lanceolata
Silhouette: Afsarnayakkan · PhyloPic
In 3 days <5% in a week ~10%
The lanceolated warbler (Locustella lanceolata) is a species of Old World warbler in the genus Locustella. It breeds from northwest European Russia across the Palearctic to northern Hokkaidō, Japan. It is migratory, wintering in Southeast Asia. The genus name Locustella is from Latin and is a diminutive of locusta, "grasshopper". This refers to the song of the common grasshopper warbler and some others in this genus. The specific lanceolata is Latin for "spear-shaped" and refers to the streaks on the breast.
This small passerine bird is a species found in grassland with some thicker shrubby vegetation or trees, often close to water in bogs or wet clearings. Five eggs are laid in a nest in a tussock. This species is a rare vagrant to western Europe. One of the best places to see this skulking species as a vagrant is Fair Isle, Shetland.
This is a small warbler. The adult has a streaked brown back and whitish grey underparts, which have small lance-head like streaks, that are also found on the undertail. The sexes are identical, as with most warblers, but young birds are yellower below. Like most warblers, it is insectivorous.
This is a skulking species which is very difficult to see except sometimes when singing. It creeps through grass and low foliage. The song is a monotonous mechanical insect-like reeling as in other species in the group, often given at dusk. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 2 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 3 | Khao Yai National Park | 🇹🇭 Thailand | |
| 4 | Cat Tien National Park | 🇻🇳 Vietnam |
Rare
Under 5% of wildlife watchers report a Lanceolated Warbler sighting in Hong Kong on a given day, based on 72 verified sightings from GBIF citizen-science data. It is the 139th most-seen of the 204 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
October
In that month about 10% of wildlife watchers report a Lanceolated Warbler in Hong Kong on a given day, against under 5% in November to September, the lowest months. That is one of Hong Kong's driest months, with about 50 mm of rain against 280 mm in June.
3rd of 8
Of the 8 cities where we can rate Lanceolated Warbler sightings, Hong Kong ranks 3rd at under 5%. The best odds are in Đà Nẵng (Vietnam, about 20%) and Beijing (China, under 5%).
GBIF citizen-science records
It is estimated from how often the Lanceolated Warbler is recorded against all the birds logged in Hong Kong (72 verified sightings), 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.
