Acrocephalus schoenobaenus
Silhouette: Yves Hoebeke · PhyloPic
In 3 days ~50% in a week ~80%
The sedge warbler (Acrocephalus schoenobaenus) is an Old World warbler in the genus Acrocephalus. It is a medium-sized warbler with a brown, streaked back and wings and a distinct pale supercilium. Sedge warblers are migratory, crossing the Sahara to get from their European and Asian breeding grounds to spend winter in Africa. The male's song is composed of random chattering phrases and can include mimicry of other species. The sedge warbler is mostly insectivorous.
The sedge warbler was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Motacilla schoenobaenus. The species is now placed in the genus Acrocephalus that was introduced in 1811 by Johann Andreas Naumann and his son Johann Friedrich Naumann. British ornithologists did not distinguish the species from the common reed warbler until the 18th century. The genus name Acrocephalus is from Ancient Greek akros, "highest", and kephale, "head". It is possible that the Naumanns thought akros meant "sharp-pointed". The specific schoenobaenus is from Ancient Greek skhoinos, "reed", and baino, "to tread". It is a translation of the old Swedish... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Biebrza National Park | 🇵🇱 Poland | |
| 2 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 3 | Białowieża National Park | 🇵🇱 Poland | |
| 4 | Hortobágy National Park | 🇭🇺 Hungary | |
| 5 | Kiskunság National Park | 🇭🇺 Hungary | |
| 6 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 7 | Wadden Sea National Park | 🇩🇪 Germany | |
| 8 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 9 | Doñana National Park | 🇪🇸 Spain | |
| 10 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 11 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 12 | Monfragüe National Park | 🇪🇸 Spain | |
| 13 | Amboseli National Park | 🇰🇪 Kenya | |
| 14 | Gauja National Park | 🇱🇻 Latvia | |
| 15 | Tsavo West National Park | 🇰🇪 Kenya | |
| 16 | Nairobi National Park | 🇰🇪 Kenya | |
| 17 | Serengeti National Park | 🇹🇿 Tanzania | |
| 18 | Chobe National Park | 🇧🇼 Botswana | |
| 19 | Lake Nakuru National Park | 🇰🇪 Kenya | |
| 20 | Camargue | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brazzaville | 🇨🇬 Republic of the Congo | |
| 2 | Helsinki | 🇫🇮 Finland | |
| 3 | Jerusalem | 🇮🇱 Israel | |
| 4 | Dakar | 🇸🇳 Senegal | |
| 5 | Minsk | 🇧🇾 Belarus | |
| 6 | Saint Petersburg | 🇷🇺 Russia | |
| 7 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 8 | Beirut | 🇱🇧 Lebanon | |
| 9 | Nizhny Novgorod | 🇷🇺 Russia | |
| 10 | Antalya | 🇹🇷 Turkey |
Possible
About 20% of wildlife watchers report a Sedge Warbler sighting in Helsinki on a given day, based on 1,221 verified sightings from GBIF citizen-science data. It is the 55th most-seen of the 233 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
June
In that month about 50% of wildlife watchers report a Sedge Warbler in Helsinki on a given day, against under 5% in October to April, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Sedge 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.
2nd of 44
Of the 44 cities where we can rate Sedge Warbler sightings, Helsinki ranks 2nd at about 20%. The best odds are in Brazzaville (Republic of the Congo, about 30%).
GBIF citizen-science records
It is estimated from how often the Sedge Warbler is recorded against all the birds logged in Helsinki (1,221 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.
