Yellow-billed Egret
Ardea brachyrhyncha
A stocky egret that is larger than Western Cattle and Little Egrets, but smaller than the Great Egret. Often confusing and difficult to identify, this bird is truly intermediate between potential confusion species. Things to look for include a yellow bill (brighter during breeding season) that is shorter than Great Egret but longer than Cattle Egret, a relatively rounded head, and shorter legs than Great Egret, approaching Cattle Egret. Like most egret species, associates with all types of water bodies including wet fields, often flocking with other egrets.
Identification
The yellow-billed egret has a length of 61 to 69 cm (24 to 27 in) and is white, resembling the great egret (A. alba) but differs in having a smaller bill and a gape which does not extend beyond the eye. In breeding plumage the yellow-billed egret grows long plumes on its back and breast and the normally yellow bill becomes orange red. The bill may have a black tip outside the breeding season. The lower legs and toes are dusky while the tibia is paler, becoming pinkish red for a short period during courtship before changing to yellow for the rest of the breeding season. The lores are yellow and, again, these change colour in the breeding season when they become green when the eyes also change from yellow to bright red. The breeding colour of the bare parts reverts to normal soon after the eggs are laid.
Taxonomy
The yellow-billed egret was first formally described as Herodias brachyrynchus by the German zoologist Alfred Brehm with its type locality given as the Blue Nile (blauen Flusse). This taxon has been regarded as a subspecies of the intermediate egret (Ardea intermedia) but on 26 September 2023 the International Ornithological Congress recognised the three subspecies of A. intermedia as valid species.
- Scientific name
- Ardea brachyrhyncha
- Authority
- (Brehm, AE, 1854)
- Order
- Pelecaniformes
- Family
- Ardeidae
- Genus
- Ardea
Range and habitat
The yellow-billed egret is found in Africa south of the Sahara Desert from southern Mauretania and Sudan south to the Western Cape in South Africa, avoiding areas of desert and dense tropical forest. It has been recorded as a vagrant in the Seychelles and the Cape Verde Islands. The yellow-billed egret is typically encountered in seasonally inundated wetlands and grasslands as well as on the shallow edges of lakes, rivers, salt pans and in estuaries.
- Migration
- Resident species
Conservation
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds
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Pternistis rufopictus
A large gray-and-brown francolin with bare red skin on the throat and around the eyes. Also note the red bill, the dark gray legs, and the chestnut, buff, and black markings along the sides of the belly. Pale patches in the outer wings are conspicuous in flight. Found in fairly dry thorn savanna, woodland, and thickets, usually in pairs or small groups. Similar to Red-necked Francolin, but there is little overlap in range, and separated by the brown legs and many plumage details. Also similar to Yellow-necked Francolin, but easily separated by the red or sometimes orange (rather than yellow) throat. The call is a fading series of grating “kreaaak” notes.
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Malurus leucopterus
A small bird with a long blue tail that is held cocked. Breeding males are usually brilliant sapphire blue with bright white wing patches. Females and nonbreeding males are very plain pale gray, and the patch between the eye and bill (lores) is also pale (compared to Purple-backed Fairywren which has very dark reddish lores). This species is typically found in very open and arid country with sparse bushes, where it often perches on the very top of bushes. Its call is a very fast trill.
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Large black bill is diagnostic. Slightly larger than similar plovers, with large blocky head. Breeding plumage shows thick black band across breast, white forehead, and bolder face pattern; nonbreeding birds show less contrast. Legs dull pinkish. Found on sandy beaches, usually singly but sometimes in small loose flocks. Medium-brown upperparts similar but slightly paler than Semipalmated Plover, notably darker than Snowy or Piping.
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