Pacific Reef Heron

Pacific Reef Heron

Egretta sacra

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~60% · Likely
at Komodo National Park
302 Verified sightings at Komodo National Park From 2019 to 2026
1,818 Verified sightings across all 21 parks From 2019 to 2026
August Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Pacific Reef Heron

The Pacific reef heron (Egretta sacra), also known as the eastern reef heron or eastern reef egret, is a species of heron found throughout southern Asia and Oceania. It occurs in two colour morphs with either slaty grey or pure white plumage. The sexes are similar in appearance.

The Pacific reef heron was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with the herons, cranes and egrets in the genus Ardea and coined the binomial name Ardea sacra. Gmelin based his description on the "Sacred heron" that had been described in 1785 by the English ornithologist John Latham in his multi-volume work A General Synopsis of Birds. The naturalist Joseph Banks had provided Latham with a specimen of a white morph that had been collected on Tahiti. The Pacific reef heron is now placed with 12 other species in the genus Egretta that was introduced in 1817 by the German naturalist Johann Reinhold Forster. The genus name comes from the Provençal French for the little egret, aigrette, a diminutive of aigron, "heron". The specific epithet sacra is from Latin sacer meaning "sacred... 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 Cape Range 🇦🇺 Australia
~70%
2 Ningaloo Marine Park 🇦🇺 Australia
~40%
3 Raja Ampat 🇮🇩 Indonesia
~30%
4 Noosa National Park 🇦🇺 Australia
~20%
5 Daintree National Park 🇦🇺 Australia
~10%
6 Tangkoko Nature Reserve 🇮🇩 Indonesia
~10%
7 Abel Tasman National Park 🇳🇿 New Zealand
~10%
8 Bali Barat National Park 🇮🇩 Indonesia
<5%
9 Booderee National Park 🇦🇺 Australia
<5%
10 Taroko National Park 🇹🇼 Taiwan
<5%
11 Royal National Park 🇦🇺 Australia
<5%
12 Fiordland National Park 🇳🇿 New Zealand
<5%
13 Bako National Park 🇲🇾 Malaysia
Insufficient data
14 Flinders Chase 🇦🇺 Australia
Insufficient data
15 Khao Sok National Park 🇹🇭 Thailand
Insufficient data
16 Rakiura National Park 🇳🇿 New Zealand
Insufficient data
17 Kinabatangan Wildlife Sanctuary 🇲🇾 Malaysia
Insufficient data
18 Kakadu National Park 🇦🇺 Australia
Insufficient data
19 Kinabalu Park 🇲🇾 Malaysia
Insufficient data
20 Sepilok 🇲🇾 Malaysia
Insufficient data
21 Kaeng Krachan National Park 🇹🇭 Thailand
Insufficient data

Quick answers

What are the chances of seeing a Pacific Reef Heron in Komodo National Park?

About 60% of wildlife watchers report a Pacific Reef Heron sighting in Komodo National Park, based on 302 verified sightings from GBIF citizen-science data.

When is the best time to see Pacific Reef Heron in Komodo National Park?

August has the highest sighting rate for Pacific Reef Heron in Komodo National Park in our monthly data.

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