Great-billed Heron

Great-billed Heron

Ardea sumatrana

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability Insufficient data
at Tangkoko Nature Reserve
6 Verified sightings at Tangkoko Nature Reserve From 2019 to 2026
1,020 Verified sightings across all 9 parks From 2019 to 2026
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Great-billed Heron

The great-billed heron (Ardea sumatrana) is a wading bird of the heron family, resident from southeast Asia to Papua New Guinea and Australia. The great-billed heron is a large bird, typically standing 115 cm (45 in) tall and weighing up to 2.6 kg (5.7 lb). It resembles the purple heron in appearance, although it is larger and darker. The plumage is largely dark grey above. In flight, it has a uniform dark grey upperwing.

The flight is slow, with its neck retracted. This is characteristic of herons and bitterns, and distinguishes them from storks, cranes and spoonbills, which extend their necks. The species feeds in shallow water, spearing fish with its long, sharp bill. It will wait motionless for prey, or slowly stalk its victim.

Great-billed heron is polytypic, meaning that it has more than one subspecies. The two subspecies are most easily distinguished by their different locations: Ardea sumatrana mathewsae is found on the coasts of tropical northern Australia

Ardea sumatrana sumatrana is found on the coasts of southeastern Asia, Indonesia, Philippines, and New Guinea The great-billed heron has a very large range... Wikipedia →

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Daily sighting probability
1 Daintree National Park 🇦🇺 Australia
~30%
2 Nitmiluk National Park 🇦🇺 Australia
~10%
3 Bali Barat National Park 🇮🇩 Indonesia
~10%
4 Raja Ampat 🇮🇩 Indonesia
~10%
5 Danum Valley Conservation Area 🇲🇾 Malaysia
<5%
6 Kakadu National Park 🇦🇺 Australia
<5%
7 Kinabatangan Wildlife Sanctuary 🇲🇾 Malaysia
<5%
8 Way Kambas National Park 🇮🇩 Indonesia
Insufficient data
9 Tangkoko Nature Reserve 🇮🇩 Indonesia
Insufficient data
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