Egretta gularis
Identity and identification
Western Reef Heron Egretta gularis belongs to Ardeidae. Dark-grey and white forms occur; a white throat patch often marks the dark form. The bill is relatively substantial and the feet yellow. White birds resemble Little Egret, so body colour alone is insufficient; hybridisation can complicate identification. It is placed in the order Pelecaniformes.
Habitat, food and behaviour
It feeds along shallow coasts, tidal flats, mangroves and exposed reefs. Small fish, crustaceans and other invertebrates are captured by walking or waiting. Tides determine access to feeding places. Short pursuits and wing shading may help locate or catch prey.
Breeding and parental care
Nests stand near the coast in mangroves, shrubs or other secure sites. References reviewed in a 2025 study of incubation behaviour in eastern Saudi Arabia give typical clutches of three or four eggs and incubation around 26–28 days, with both parents contributing to care. These reference durations vary among populations and are not a fixed calendar for every colony.
Range and Arab occurrence
Western populations occur along African coasts; eastern populations occupy the Red Sea, Gulf and Arabian Sea region. It is a documented coastal breeding bird in the UAE, including studied mangrove colonies. An identification photograph alone cannot establish occurrence or breeding in another country.
Seasonality and observation
Resident coastal sites support year-round observation, while numbers and gatherings vary with feeding and breeding conditions. Low tide reveals feeding grounds. Approaching nesting islands must not force adults from their nests.
Ecological role and conservation
Healthy coasts, mangroves and shallow water sustain it. Mangrove loss, tidal-flat reclamation, oil pollution and colony disturbance are direct pressures. Protecting a nesting colony also requires protecting its feeding grounds: retaining a tree cannot compensate for losing the surrounding tidal habitat.
References
Environment Agency–Abu Dhabi — Western Reef Heron, UAE National Red List.
AlRashidi et al. — Incubation Behavior of the Western Reef Heron (Egretta gularis) in Eastern Saudi Arabia: Adaptations to Extreme Thermal Conditions. Life 15(9) (2025), 1380. https://doi.org/10.3390/life15091380
AviList Core Team — AviList: The Global Avian Checklist, v2026 (20 October 2026).
Photo: Mirela — CC0 1.0.