Yellow-rumped Thornbill

Yellow-rumped Thornbill

Acanthiza chrysorrhoa

Silhouette: Matt Wilkins (photo by Patrick Kavanagh) · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
Daily sighting probability ~10% · With luck
at Blue Mountains National Park
448 Verified sightings at Blue Mountains National Park From 2019 to 2026
1,321 Verified sightings across all 14 parks From 2019 to 2026
August Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Yellow-rumped Thornbill

The yellow-rumped thornbill (Acanthiza chrysorrhoa) is a species of passerine bird from the genus Acanthiza. The genus was once placed in the family Pardalotidae but that family was split and it is now in the family Acanthizidae. There are four subspecies of yellow-rumped thornbill. It is a small, brownish bird with a distinctive yellow rump and thin dark bill. It inhabits savannah, scrub and forests across most of Australia and eats insects. The species engages in cooperative breeding.

The yellow-rumped thornbill was described as Saxicola chrysorrhoa by the French naturalists Jean René Constant Quoy and Joseph Paul Gaimard in 1830, from a specimen collected in King George Sound. The specific epithet derives from Ancient Greek khrysos 'gold' and orrhos 'rump'. Four subspecies are recognised: the nominate chrysorrhoa of Western Australia, leachi of Tasmania, leighi of eastern Australia, and normantoni of central and northern Australia. Butterbum is a colloquial name used by Australian birdwatchers.

A 2017 genetic study using both mitochondrial and nuclear DNA found the yellow-rumped thornbill was an early offshoot within the thornbill genus, its ancestor diverging from... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Maria Island National Park 🇦🇺 Australia
~60%
2 Flinders Ranges National Park 🇦🇺 Australia
~30%
3 Grampians National Park 🇦🇺 Australia
~20%
4 Kosciuszko National Park 🇦🇺 Australia
~10%
5 Blue Mountains National Park 🇦🇺 Australia
~10%
6 Great Otway National Park 🇦🇺 Australia
<5%
7 Uluru-Kata Tjuta National Park 🇦🇺 Australia
<5%
8 Lamington National Park 🇦🇺 Australia
<5%
9 Freycinet National Park 🇦🇺 Australia
Insufficient data
10 Wilsons Promontory National Park 🇦🇺 Australia
Insufficient data
11 Booderee National Park 🇦🇺 Australia
Insufficient data
12 Cradle Mountain-Lake St Clair National Park 🇦🇺 Australia
Insufficient data
13 Royal National Park 🇦🇺 Australia
Insufficient data
14 Ningaloo Marine Park 🇦🇺 Australia
Insufficient data

Quick answers

What are the chances of seeing a Yellow-rumped Thornbill in Blue Mountains National Park?

About 10% of wildlife watchers report a Yellow-rumped Thornbill sighting in Blue Mountains National Park, based on 448 verified sightings from GBIF citizen-science data.

When is the best time to see Yellow-rumped Thornbill in Blue Mountains National Park?

August has the highest sighting rate for Yellow-rumped Thornbill in Blue Mountains National Park in our monthly data.

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