Thursday, April 16, 2009

Jacana



The Jacana birds are tropical pond and wetland fish foragers, insect eating marsh waders। Brown in color, they pick delicately over surface water and dive beneath for sustenance and prey hiding. Balancing their weight across thin legs and feet, Jacana nimbly step over mostly wetland habitat for food and plunge beneath to capture prey. Males in the Jacana avian line build the nest, master incubation roles, and teach the young to forage for food. This unusual reproductive pattern reflects the seabird wetland differentiation from birds of this type and size.
Habitating globally, the Jacana has a coloration specialty between species that fascinates bird watchers worldwide. Jacanas sport long thin feet and attenuated claws which enable them to walk with weight distributed on water. Negotiating the floating vegetation in the shallow lakes and waterlands that are their preferred habitat is the reason these birds are also known as "Jesus Birds." The Jacana eggs themselves sport a wet look and tan darker coloration that blends with the marshy habitat and moist regional vegetative cover.

Most Jacana are non migratory water perchers, and Jacana females are larger than the Jacana males. Typical of shorebirds, they sexually do not differentiate in color or plumage, except during breeding in some species. The females are more colorful than the males and have multiple breeding mates. Bronze wings, comb crests, and other traits are found through Australia and other habitats. Female Jacana in India may lay four eggs in breeding season and ten clutches.
The Pheasant-tailed Jacana is a wader with delicate but purposefully articulated feet and claws। These important species features allow Jacana to walk on floating lake growth and massed vegetation. Jacana are considered strong swimmers but weak in flight skills, explaining their preference for water prey.
The Pheasant-tailed Jacana breeds with spectacular differentiation in India, southeast Asia and Indonesia. In Taiwan, the bird is considered endangered. The hind neck is golden, with an eye accented by a stripe of white. Breeding adults are mostly black. The long thin feet and legs are spindly black. This can help defend sinking nests and teach young to capture worms and insects.

The Jacana diet gets gleaned from water and consists of molluscs, crustaceans, seeds, and plant life। They breed on floating vegetation. The weight spread of feet and toes can aid in quick submersible diving and stalking aqueous prey. In southern India, Jicana breed in the monsoon season, June to September. The female lays a replacement clutch if the nest is lost, but she is away breeding with other males during fledgling stages of the eggs and nest life.






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