Northern Jacanas
Jacanas
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The Northern Jacana Jacana spinosa is a wader which is a resident breeder from coastal Mexico to western Panama, and on Cuba, Jamaica and Hispaniola. It sometimes breeds in Texas, USA.
In Jamaica this bird is also known as the 'Jesus bird', as it appears to walk on water.
The jacanas are a group of wetland birds, which are identifiable by their huge feet and claws which enable them to walk on floating vegetation in the shallow lakes that are their preferred habitat. They are found worldwide within the tropical zone.
Breeding:
The Northern Jacana lays four black-marked brown eggs in a floating nest. The male, as with other jacanas, and some other wader families like the phalaropes, takes responsibility for incubation, with two eggs held between each wing and the breast. The females are polyandrous (meaning they form stable unions with more than one male), and will help to defend the nests of up to four mates.
Description:
These are conspicuous and unmistakable birds, with all three races being very similar. They are 17–23cm long, but the females are larger than the males. The adults have a chestnut back and wing coverts, with the rest of the body mainly black. In flight the greenish yellow flight feathers are obvious. The yellow bill extends up as a coot-like head shield and the legs and very long toes are dull yellow. There is a long sharp spur on the bend of the wing. This species produces a range of noisy rattling calls.
Young birds initially have entirely white underparts, and can always be identified by the presence of white in their plumage.
This species is very similar to the Wattled Jacana, Jacana spinosa, with which it overlaps in Panama, and was formerly considered conspecific with that form. The main differences are that Wattled has a red frontal shield and a reddish rictal wattle, and lacks the slight brownish tint to the belly plumage of Northern. However, juveniles can be difficult to identify, since the only distinction is the shape of the tiny developing frontal shield.
Diet:
The Northern Jacana's food is insects, other invertebrates and seeds picked from the floating vegetation or the water's surface.
Source: Wikipedia.org
Relevant Web Resources: Northern Jacana - Jacana Spinosa (USGS - Photo, ID Tips, etc.)
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