Nyctophilus geoffroyi
Silhouette: Margot Michaud · PhyloPic
In 3 days ~20% in a week ~40%
Nyctophilus geoffroyi is a vespertilionid bat. a flying nocturnal mammal found in Australia, The species is relatively common. They have been referred to as the lesser long-eared bat. It is the type species of genus Nyctophilus.
Molecular data indicate Vespertilionidae, the family to which the lesser long-eared bat belongs, diverged from the family Molossidae (free-tailed bats) in the early Eocene period. The family is thought to have originated somewhere in Laurasia, possibly North America. The genus Nyctophilus itself has a limited fossil record, dating back only to the Pleistocene.
The species was recognised by Oldfield Thomas in his examinations of the genus, and indicated the diversity by three subspecies, Nyctophilus geoffroyi, Leach 1821, Noted as 1822 by the author, but the publication date was ascertained as 1821 by later workers.
Nyctophilus geoffroyi geoffroyi, the nominate subspecies, which refers to the first description of Leach. Nyctophilus geoffroyi pacificus, the taxon published by Gray as Barbastellus pacificus and the description of Tomes (monograph, 1858) for species Nyctophilus unicolor.
Nyctophilus geoffroyi pallescens, distinguished and described... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Otway National Park | 🇦🇺 Australia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Lesser Long-eared Bat sighting in Great Otway National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 22nd most-seen of the 30 mammals we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April and August
In those months about 20% of wildlife watchers report a Lesser Long-eared Bat in Great Otway National Park on a given day, against under 5% in May–July and September–March, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Lesser Long-eared 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 Great Otway National Park, in our data
Great Otway National Park is the only park on Wallace's Line with enough records to rate Lesser Long-eared Bat sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Lesser Long-eared Bat is recorded against all the mammals logged in Great Otway 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.
