Acanthorhynchus tenuirostris
Silhouette: Michael Scroggie · PhyloPic
In 3 days ~90% in a week >90%
The eastern spinebill (Acanthorhynchus tenuirostris) is a species of honeyeater found in eastern Australia from Queensland to Tasmania in forest and woodland areas, as well as gardens in urban areas. It is around 15 cm long, and has a distinctive black, white and chestnut plumage, a red eye, and a long downcurved bill.
Originally described as Certhia tenuirostris by the English ornithologist John Latham in 1801, it is a member of the small genus Acanthorhynchus with one other, the western spinebill of Western Australia. The generic name is derived from the Greek translation of spinebill, namely acantho-/ακανθο- 'spine' and rhynchos/ρυνχος 'bill'. Its specific epithet is from Latin tenuis 'narrow' and rostrum 'bill'. Other English names include spine-billed honeyeater and awl-bird or cobbler's awl bird.
The eastern spinebill forms a superspecies with the closely related western spinebill. Scientists believe the two sister species are descended from a shared ancestor whose once widespread populations were... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia | |
| 2 | Booderee National Park | 🇦🇺 Australia | |
| 3 | Grampians National Park | 🇦🇺 Australia | |
| 4 | Royal National Park | 🇦🇺 Australia | |
| 5 | Wilsons Promontory National Park | 🇦🇺 Australia | |
| 6 | Lamington National Park | 🇦🇺 Australia | |
| 7 | Freycinet National Park | 🇦🇺 Australia | |
| 8 | Great Otway National Park | 🇦🇺 Australia | |
| 9 | Maria Island National Park | 🇦🇺 Australia | |
| 10 | Flinders Chase | 🇦🇺 Australia | |
| 11 | Springbrook National Park | 🇦🇺 Australia | |
| 12 | Kosciuszko National Park | 🇦🇺 Australia | |
| 13 | Cradle Mountain-Lake St Clair National Park | 🇦🇺 Australia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Featherdale Sydney Wildlife Park | 🇦🇺 Australia |
Likely
About 50% of wildlife watchers report an Eastern Spinebill sighting in Booderee National Park on a given day, based on 297 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 8th most-seen of the 128 birds we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
March and June
In those months about 70% of wildlife watchers report an Eastern Spinebill in Booderee National Park on a given day, against about 30% in October, the lowest month.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Eastern Spinebill sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 13
Of the 13 parks where we can rate Eastern Spinebill sightings, Booderee National Park ranks 2nd at about 50%. The best odds are in Blue Mountains National Park (Australia, about 70%). All parks ranked.
Same family: Meliphagidae
The closest relatives of the Eastern Spinebill that you can see in Booderee National Park (family Meliphagidae, Honeyeaters) are New Holland Honeyeater (about 60%), Little Wattlebird (about 60%) and Yellow-faced Honeyeater (about 50%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eastern Spinebill is recorded against all the birds logged in Booderee National Park (297 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.
