Gerygone tenebrosa
Silhouette: Sheatherius · PhyloPic
In 3 days ~60% in a week ~90%
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 30% of wildlife watchers report a Dusky Gerygone sighting in Cape Range on a given day, based on 60 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 23rd most-seen of the 84 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
August and November
In those months about 40% of wildlife watchers report a Dusky Gerygone in Cape Range on a given day, against about 20% in March–April and December–January, the lowest months. Those are among Cape Range's driest months, with about 5 mm of rain a month against 55 mm in June. February has too few records to rate.
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.
Yes
Of the 2 parks where we can rate Dusky Gerygone sightings, Cape Range has the highest daily chance: about 30%. Next come Ningaloo Marine Park (Australia, about 20%).
GBIF citizen-science records
It is estimated from how often the Dusky Gerygone is recorded against all the birds logged in Cape Range (60 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.
