Yellow-breasted Boatbill

Yellow-breasted Boatbill

Machaerirhynchus flaviventer

Silhouette: Sheatherius · PhyloPic

LCLeast ConcernNTVUENCR
Daily sighting probability ~20% · Possible
at Raja Ampat

In 3 days ~40% in a week ~70%

165 Verified sightings at Raja Ampat From 2019 to 2026
212 In all 2 parks
July Best month
☀️ Diurnal When it's spotted

About the Yellow-breasted Boatbill

The yellow-breasted boatbill (Machaerirhynchus flaviventer) is a species of bird found in New Guinea and Far North Queensland, Australia. The yellow-breasted boatbill is a species of bird belonging to the Machaerirhynchidae family, of the genus Machaerirhynchus. The yellow-breasted boatbill is a common avian animal, and it is well known within communities of ornithologists. Its natural habitat is primarily that of subtropical or tropical regions, particularly moist forests; the yellow-breasted boatbill has no preference for altitude within its environment and can be found abundantly in its natural habitat.

The yellow-breasted boatbill is a distinctive bird that is small in size and stature ranging from 11 cm to 12.5 cm. On average they weigh around 9–10g. Its black bill is large relative to its body and is wide, long and flat resembling the shape of a boat, hence the bird's name. The tip of the bird's beak is hooked, similar in shape to other bird species, especially those in the same Machaerirhynchidae family. It also has a distinctive keel which serves to highlight the underside of the yellow-breasted boatbill, which is a distinguishingly bright yellow, leading all... Wikipedia →

Sounds

Song0:48

Indonesia · 2026

© Ding Li Yong · XC1165334 · CC BY-NC-ND 4.0

Uncertain0:11

Australia · 2021

© nick talbot · XC642783 · CC BY-NC-SA 4.0

Call0:11

Australia · 2019

© James Lambert · XC517543 · CC BY-NC-SA 4.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Raja Ampat 🇮🇩 Indonesia
~20%
2 Daintree National Park 🇦🇺 Australia
<5%

Before you go

What are the chances of seeing a Yellow-breasted Boatbill in Raja Ampat?

Possible

About 20% of wildlife watchers report a Yellow-breasted Boatbill sighting in Raja Ampat on a given day, based on 165 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 70th most-seen of the 200 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.

When is the best time to see a Yellow-breasted Boatbill in Raja Ampat?

July and October–November

In those months about 20% of wildlife watchers report a Yellow-breasted Boatbill in Raja Ampat on a given day, against under 5% in April, the lowest month.

What time of day is best to see a Yellow-breasted Boatbill?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Yellow-breasted Boatbill sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Raja Ampat the best place to see a Yellow-breasted Boatbill?

Yes

Of the 2 parks where we can rate Yellow-breasted Boatbill sightings, Raja Ampat has the highest daily chance: about 20%. Next come Daintree National Park (Australia, under 5%).

Which relatives of the Yellow-breasted Boatbill live in Raja Ampat?

Same order: Passeriformes

The closest relatives of the Yellow-breasted Boatbill that you can see in Raja Ampat (order Passeriformes, Perching Birds) are Willie Wagtail (about 80%), Helmeted Friarbird (about 70%) and Pacific Swallow (about 60%), with each one's daily chance of a sighting.

Where does the Yellow-breasted Boatbill sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Yellow-breasted Boatbill is recorded against all the birds logged in Raja Ampat (165 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.

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