Egretta dimorpha
Silhouette: L. Shyamal · PhyloPic
In 3 days ~90% in a week >90%
The dimorphic egret (Egretta dimorpha) is a species of heron in the family Ardeidae. It is found in Comoros, Kenya, Madagascar, Mayotte, Seychelles, and Tanzania. The dimorphic egret is sometimes considered as a subspecies of the western reef egret (Egretta gularis) or as a subspecies of the little egret (Egretta garzetta).
The dimorphic egret can sometimes be found on rooftops, finding insects in the gutters of houses. Taylor, D. (2010). "The Egretta garzetta complex in East Africa. A case for one, two or three species". Scopus. 30: 59–62. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zanzibar City | 🇹🇿 Tanzania | |
| 2 | Antananarivo | 🇲🇬 Madagascar | |
| 3 | Dar es-Salaam | 🇹🇿 Tanzania |
Likely
About 50% of wildlife watchers report a Dimorphic Egret sighting in Zanzibar City on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 16th most-seen of the 86 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.
June and September
In those months about 70% of wildlife watchers report a Dimorphic Egret in Zanzibar City on a given day, against about 10% in August and December, the lowest months. Those are among Zanzibar City's driest months, with about 25 mm of rain a month against 260 mm in April. April has too few records to rate.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Dimorphic Egret sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 cities where we can rate Dimorphic Egret sightings, Zanzibar City has the highest daily chance: about 50%. Next come Antananarivo (Madagascar, about 50%) and Dar es-Salaam (Tanzania, about 40%).
Same genus: Egretta
The closest relatives of the Dimorphic Egret that you can see in Zanzibar City (genus Egretta, Small Egrets and Herons) are Little Egret (about 90%), intermediate egret (about 30%) and Black Heron (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dimorphic Egret is recorded against all the birds logged in Zanzibar City (9 verified sightings), 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.
