Bombus mesomelas
In 3 days ~30% in a week ~60%
Bombus mesomelas (also called black-backed bumblebee) is a species of bumblebees. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vanoise National Park | 🇫🇷 France | |
| 2 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 3 | Mercantour National Park | 🇫🇷 France | |
| 4 | Aigüestortes National Park | 🇪🇸 Spain | |
| 5 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Black-Backed Bumble Bee sighting in Mercantour National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 221st most-seen of the 412 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report a Black-Backed Bumble Bee in Mercantour National Park on a given day, against under 5% in September to June, the lowest months. That is one of Mercantour National Park's driest months, with about 50 mm of rain against 140 mm in October.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Black-Backed Bumble Bee sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 5 parks where we can rate Black-Backed Bumble Bee sightings, Mercantour National Park ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Vanoise National Park (France, about 10%) and Hohe Tauern National Park (Austria, about 10%).
Same genus: Bombus
The closest relatives of the Black-Backed Bumble Bee that you can see in Mercantour National Park (genus Bombus, Bumble Bees) are Sichel's Bumble Bee (about 10%), Common Carder Bumble Bee (about 10%) and Early Bumble Bee (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black-Backed Bumble Bee is recorded against all the insects logged in Mercantour National Park (9 verified sightings from 2019 to 2026), 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.
