Pteromys volans
In 3 days ~30% in a week ~50%
The Siberian flying squirrel (Pteromys volans) is an Old World flying squirrel ranging from the Baltic Sea in the west, throughout Northern Asia to the coast of the Pacific Ocean in the east. It is the only species of flying squirrel in Europe and is considered vulnerable in the European Union where it occurs only in Estonia and Finland. In Latvia, it was last sighted in 2001 and has been considered to be locally extinct since 2013.
A female Siberian flying squirrel weighs about 150 g (5.3 oz), the males being slightly smaller on average. The body is 13–20 cm (5.1–7.9 in) long, with a 9–14 cm (3.5–5.5 in) long flattened tail. The eyes are large and strikingly black. The coat is grey all over, the abdomen being slightly lighter than the back, with a black stripe between the neck and the forelimb. A distinctive feature of flying squirrels is the furry glide membrane or patagium, a flap of skin that stretches between the front and rear legs. By spreading this membrane the flying squirrel may glide from tree to tree across distances of over a hundred meters, and have been known to record a glide ratio of 3.31, but is normally 1-1.5.
The... Wikipedia →
Recording0:02
Finland · 2024
© Linda Lötjönen · iNaturalist · CC BY 4.0
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Sapporo Maruyama Zoo | 🇯🇵 Japan | |
| 2 | Asahiyama Zoo | 🇯🇵 Japan | |
| 3 | Obihiro Zoo | 🇯🇵 Japan |
With luck
About 10% of wildlife watchers report a Siberian Flying Squirrel sighting in Helsinki on a given day, based on 50 verified sightings from GBIF citizen-science data. It is the 11th most-seen of the 23 mammals we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
March
In that month about 30% of wildlife watchers report a Siberian Flying Squirrel in Helsinki on a given day, against under 5% in February, June, August and November, the lowest months.
Yes
Of the 2 cities where we can rate Siberian Flying Squirrel sightings, Helsinki has the highest daily chance: about 10%. Next come Moscow (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Siberian Flying Squirrel is recorded against all the mammals logged in Helsinki (50 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.
