Spoonbills
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Spoonbills are a group of large, long-legged wading birds in the family Threskiornithidae, which also includes the Ibises.
All have large, flat, spatulate bills and feed by wading through shallow water, sweeping the partly-opened bill from side to side. The moment any small aquatic creature touches the inside of the bill—an insect, crustacean, or tiny fish—it is snapped shut. Spoonbills generally prefer fresh water to salt but are found in both environments. They need to feed many hours each day.
Spoonbills are monogamous, but, so far as is known, only for one season at a time. Most species nest in trees or reed-beds, often with ibises or herons. The male gathers nesting material—mostly sticks and reeds, sometimes taken from an old nest—the female weaves it into a large, shallow bowl or platform which varies in its shape and structural integrity according to species.
The female lays a clutch of about 3 smooth, oval, white eggs and both parents incubate; chicks hatch one at a time rather than all together. The newly-hatched young are blind and cannot care for themselves immediately; both parents feed them by partial regurgitation. Chicks' bills are short and straight, and only gain the characteristic spoonbill shape as the they mature. Their feeding continues for a few weeks longer after the family leaves the nest. The primary cause of brood failure appears not to be predation but starvation.
The spoonbill family is one of the families in the order Ciconiiformes.
Species and distribution
The six species of spoonbill in two genera are distributed over much of the world.
- Common Spoonbill (Platalea leucorodia): This is the most widespread species, which occurs in the northeast of Africa and much of Europe and Asia across to Japan. Adults and juveniles are largely white with black outer wing-tips and dark bills and legs. Breeds in reed-beds, usually without other species.
- Black-faced Spoonbill (Platalea minor): Found in China, Korea and Japan.
- African Spoonbill (Platalea alba): Breeds in Africa and Madagascar. A large white species similar to Common Spoonbill, from which it can be distinguished by its pink face and usually paler bill. Its food includes insects and other small creatures, and it nests in trees, marshes or rocks.
- Royal Spoonbill (Platalea regia): Most common in south-east Australia, but regularly found in smaller numbers on other parts of the continent when temporary wetlands form; in New Zealand, particularly the South Island, and sometimes as stragglers in New Guinea, Indonesia, and the Pacific Islands. Its food is aquatic life, and it nests in trees, marshes or reed-beds.
- Yellow-billed Spoonbill (Platalea flavipes): Common in south-east Australia, not unusual on the remainder of the continent, vagrant to New Zealand, Lord Howe Island and Norfolk Island. Its food includes aquatic life, and it nests in trees, marshes or reed-beds.
- Roseate Spoonbill (Platalea ajaja or Ajaia ajaja): Adults are largely pink. They occur in South America, the Caribbean, Texas and southern Florida USA. They nest in Mangrove trees and feed on aquatic life.
Copyright: Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from Wikipedia.org
Relevant Web Resources: Spoonbill Photos (Birding Forum) ... National Wildlife Federation: Case of the Disappearing Spoonbills - Article - Spoonbill Clipart
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