Locustella ochotensis
In 3 days ~10% in a week ~20%
Middendorff's grasshopper warbler (Helopsaltes ochotensis) is a species of Old World warbler in the family Locustellidae. It breeds in eastern Siberia to northern Japan, Kamchatka Peninsula and northern Kuril Islands. It winters in the Philippines, Borneo and Sulawesi and in small numbers in China, Hong Kong, South Korea, Malaysia, Taiwan and the U.S.A.
The common name commemorates Alexander Theodor von Middendorff (1815–1894), a German–Russian naturalist who traveled extensively in Siberia. Middendorff's grasshopper warbler is 15.5 cm (6.1 in) in length. The crown, nape, lores and eye-stripe are greyish brown. The mantle is browner and more olive. The supercilium is pale creamy, extending to the ear coverts. The rump and uppertail coverts are more yellowish or rufous brown. The graduated, white-tipped tail may appear rounded. Its song is a high-pitched, spaced chit, chit, which precedes a trilled trrrrrrrr-schoy-schoy-schoy, call; tluk, tluk,...; it also performs a short song flight. Its habitat is forests near water and scrubwoods. Wikipedia →
Recording0:21
Russia · 2024
© Vyacheslav Luzanov · iNaturalist · CC BY-NC 4.0
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Russia · 2025
© Sergey Shestakov · iNaturalist · CC BY-NC 4.0
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Russia · 2026
© Михаил Голомысов · iNaturalist · CC BY 4.0
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Middendorff's Grasshopper Warbler sighting in Hong Kong on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 79th most-seen of the 204 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
October
In that month about 10% of wildlife watchers report a Middendorff's Grasshopper 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.
2nd of 6
Of the 6 cities where we can rate Middendorff's Grasshopper Warbler sightings, Hong Kong ranks 2nd at under 5%. The best odds are in Davao City (Philippines, about 10%).
GBIF citizen-science records
It is estimated from how often the Middendorff's Grasshopper Warbler is recorded against all the birds logged in Hong Kong (6 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.
