Macrotus waterhousii
Silhouette: Roberto Díaz Sibaja · PhyloPic
In 3 days ~10% in a week ~30%
Waterhouse's leaf-nosed bat (Macrotus waterhousii) is a species of big-eared bat in the family Phyllostomidae. It is found in the Greater Antilles (excluding Puerto Rico) in the Cayman Islands, Cuba, Hispaniola (the Dominican Republic and Haiti) and Jamaica, as well as Mexico (from Sonora to Hidalgo) south to Guatemala.
This species roosts primarily in caves, but also in mines and buildings. The species is insectivorous, primarily consuming insects of the order Lepidoptera and Orthoptera. M. waterhousii does not require complete darkness in its roosting place, and can often be found near the entrance of a cave (with in 10–30 meters), or even partially lit buildings. It is possible to find this species in groups, but not as common as other bats; they are almost never in direct contact with one another. They typically leave their roost about 30 minutes after sundown.
Male M. waterhousii have an interesting cycle in their sperm production and peak times for successful mating. From December to early June, there are no mature sperm found within the male's reproductive tract. Starting in June, the spermatogenic cycle begins, leading to... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guadalajara | 🇲🇽 México |
Rare
Under 5% of wildlife watchers report a Waterhouse's Leaf-nosed Bat sighting in Guadalajara on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 9th most-seen of the 14 mammals we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
February, May and October
In those months about 10% of wildlife watchers report a Waterhouse's Leaf-nosed Bat in Guadalajara on a given day, against under 5% in March–April, June–September and November–January, the lowest months. Those are among Guadalajara's driest months, with about 30 mm of rain a month against 210 mm in July.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Waterhouse's Leaf-nosed 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.
Only Guadalajara, in our data
Guadalajara is the only city on Wallace's Line with enough records to rate Waterhouse's Leaf-nosed Bat sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Waterhouse's Leaf-nosed Bat is recorded against all the mammals logged in Guadalajara (6 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.
