Hypsugo savii
Silhouette: PhyloPic
In 3 days ~10% in a week ~20%
Savi's pipistrelle (Hypsugo savii sometimes classified as Pipistrellus savii) is a species of vesper bat found across North West Africa, the Mediterranean region and the Middle East. It feeds at night on flying insects. In the summer it roosts under bark, in holes in trees, in old buildings and in rock crevices but in winter it prefers roosts where the temperature is more even such as caves, underground vaults and deep rock cracks.
Based on mitochondrial DNA, specifically the regions that encode cytochrome c oxidase and cytochrome b, Savi's pipistrelle is most closely related to Hypsugo alaschanicus. Savi's pipistrelle is a small bat with a head and body length of between 44 and 51 mm (1.75 and 2 in) and a forearm length between 32 and 38 mm (1.25 and 1.5 in) from elbow to wrist. It weighs between 7.4 and 9.9 g (0.26 and 0.35 oz). It has broad, rounded ears each with a short tragus that is widest in the middle and narrows towards the rounded tip. The face, ears and wing membranes are black. The short fur on the upperside of the head and body is dark brown and that on the underside is pale, with the chin, throat and chest contrasting sharply with the... Wikipedia →
Recording0:19
Spain · 2012
© Javier García - Oliva Mascarós · Observation.org, Nature data from around the World · CC BY-NC-ND 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vienna | 🇦🇹 Austria |
Rare
Under 5% of wildlife watchers report a Savi's Pipistrelle sighting in Vienna on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 15th most-seen of the 16 mammals 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.
July and August
In those months about 10% of wildlife watchers report a Savi's Pipistrelle in Vienna on a given day, against under 5% in September to June, the lowest months. Those are among Vienna's wettest months, with about 85 mm of rain a month against 40 mm in February.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Savi's Pipistrelle sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Vienna, in our data
Vienna is the only city on Wallace's Line with enough records to rate Savi's Pipistrelle sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Savi's Pipistrelle is recorded against all the mammals logged in Vienna (5 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.
