Intermediate Egret
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| Ardea intermedia (Wagler), 1827) |
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Egretta intermedia |
The Intermediate Egret or Yellow-billed Egret, (Ardea intermedia) is a medium-sized heron. It is a resident breeder from east Africa across tropical southern Asia to Australia. It often nests in colonies with other herons, usually on platforms of sticks in trees or shrubs. Two to five eggs are laid, the clutch size varying with region.
This species, as its scientific name implies, is intermediate in size between the Great Egret and smaller white egrets like the Little Egret and Cattle Egret, though nearer to Little than Great. It is about 90 cm tall with all-white plumage, generally dark legs and a thickish yellow bill. Breeding birds may have a reddish or black bill, greenish yellow gape skin, loose filamentous plumes on their breast and back, and dull yellow or pink on their upper legs (regional variations). The sexes are similar.
The Intermediate Egret stalks its prey methodically in shallow coastal or fresh water, including flooded fields. It eats fish, crustaceans and insects.
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[edit] Difference from Great Egret
The non-breeding colours are similar, but the Intermediate is smaller, with neck length a little less than body length, a slightly domed head, and a shorter, thicker bill. The Great Egret has a noticeable kink near the middle of its neck, and the top of its longer bill nearly aligns with the flat top of its head. Close up, the bare skin of the Great Egret's gape line extends in a dagger shape behind the eye, while the Intermediate's is less pointed and ends below the eye. The Intermediate tends to stalk upright with neck extended forward. The Great is more patient, often adopting a sideways-leaning "one-eyed" stance.
[edit] Difference from Little Egret
Little Egrets have yellow-soled feet. They often run after fish in shallow water. Breeding birds have long nuptial plumes on the back of their heads.
[edit] Gallery
 Non-breeding colours
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 Stalking
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[edit] References
- BirdLife International (2004). Mesophoyx intermedia. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006. Database entry includes justification for why this species is of least concern
- Birds of The Gambia by Barlow, Wacher and Disley, ISBN 1-873403-32-1
- Birds of India by Grimmett, Inskipp and Inskipp, ISBN 0-691-04910-6
Categories: Least Concern species | Ardea | Birds of Asia | Birds of Australia | Birds of Kenya | Birds of India | Birds of Sri Lanka | Birds of China | Birds of Korea | Birds of Japan | Birds of Pakistan | Birds of Southeast Asia | Birds of Bangladesh | Birds of Myanmar | Birds of Vietnam | Birds of Cambodia | Birds of Thailand | Birds of Malaysia | Birds of Singapore | Birds of Brunei | Birds of Indonesia | Birds of the Philippines | Birds of Western Australia
