Gerygone tenebrosa
Silhouette: Sheatherius · PhyloPic
In 3 days ~50% in a week ~80%
The dusky gerygone (Gerygone tenebrosa) is a species of bird in the family Acanthizidae. It is endemic to coastal central and northern areas of Western Australia, from Shark Bay to Kunmuya. Its natural habitat is subtropical or tropical mangrove forests.
The dusky gerygone is about 10-13 cm in length, with the upper parts grey-brown and tinged olive. The underparts are a greyish white, legs and beak are black. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cape Range | 🇦🇺 Australia | |
| 2 | Ningaloo Marine Park | 🇦🇺 Australia |
Possible
About 20% of wildlife watchers report a Dusky Gerygone sighting in Ningaloo Marine Park on a given day, based on 59 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 32nd most-seen of the 102 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
February, August and November
In those months about 30% of wildlife watchers report a Dusky Gerygone in Ningaloo Marine Park on a given day, against about 10% in April and December–January, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Dusky Gerygone sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Dusky Gerygone sightings, Ningaloo Marine Park ranks 2nd at about 20%. The best odds are in Cape Range (Australia, about 30%).
GBIF citizen-science records
It is estimated from how often the Dusky Gerygone is recorded against all the birds logged in Ningaloo Marine Park (59 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.
