Vespertilio murinus
Silhouette: Johann Christian Daniel von Schreber · PhyloPic
In 3 days ~20% in a week ~30%
The parti-coloured bat or rearmouse (Vespertilio murinus) is a species of vesper bat that lives in temperate Eurasia, from Western and Southern Europe, eastwards over the Caucasus and Iran into Afghanistan, northern Pakistan, Mongolia, north-east China, and Korea.
Their twittering call, similar to a bird's call, can be heard particularly in autumn during the mating season. The parti-coloured bat has a body size of 4.8–6.4 centimetres (1.9–2.5 in) with a wingspan of 26–33 cm (10–13 in), and a weight of 11–24 grams (0.39–0.85 oz). Its name is derived from its fur, which has two colours. Its back (dorsal side) is red to dark-brown, with silver-white-frosted hair. The ventral side is white or grey. The ears, wings and face are black or dark brown. The wings are narrow. The ears are short, broad and roundish. It is known to live up to 12 years.
These bats hunt for their prey, for example mosquitoes, caddis flies and moths, with a wide range of ultrasonic sounds, but especially around 25–27 kHz. They hunt after twilight at heights of around 20–40 metres (66–131 ft), for example in open landscape over streams and lakes and above forests or at street lights... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Warsaw | 🇵🇱 Poland | |
| 2 | Minsk | 🇧🇾 Belarus | |
| 3 | Novosibirsk | 🇷🇺 Russia | |
| 4 | Vienna | 🇦🇹 Austria | |
| 5 | Moscow | 🇷🇺 Russia |
No species of the same family or order lives in Novosibirsk, so these are its closest relatives here: other mammals.
With luck
About 10% of wildlife watchers report a particolored bat sighting in Novosibirsk on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 8th most-seen of the 10 mammals we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
June to October
In those months about 10% of wildlife watchers report a particolored bat in Novosibirsk on a given day, against under 5% in November to May, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most particolored bat sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Among the best
Of the 5 cities where we can rate particolored bat sightings, Novosibirsk ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Warsaw (Poland, about 10%) and Minsk (Belarus, about 10%).
GBIF citizen-science records
It is estimated from how often the particolored bat is recorded against all the mammals logged in Novosibirsk (7 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.
