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Encyclopedia > Jacanidae
Jacanas

Comb-crested Jacana
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Jacanidae
Genera

Microparra
Actophilornis
Irediparra
Hydrophasianus
Metopidius
Jacana

The Jacanas are a group of tropical waders in the family Jacanidae. They are found worldwide within the tropical zone.


They 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.


The females are larger than the males; the latter, as in some other wader families like the phalaropes take responsibility for incubation, and some species (notably the Northern Jacana) are polyandrous. However, adults of both sexes look identical, as with most shorebirds.


Food is insects and other invertebrates picked from the floating vegetation or the water’s surface.


Most species are sedentary, but Pheasant-tailed Jacana migrates from the north of its range into peninsular India and southeast Asia.


The eight species are:


  Results from FactBites:
 
Auk, The: Cenozoic Birds of the World, Part 1: Europe (1228 words)
In the Charadriiformes, for example, are found the Jacanidae and Rostratulidae (previously Anseriformes), the Scolopacidae (previously Plataleiformes), the Glareolidae, Pterocletidae, Charadriidae, Laridae (previously Cicomiformes), and the Alcidae (previously Alciformes).
The tarsometatarsus in the Jacanidae is very characteristic in the very wide distal foramen.
The supposed Czech jacana was different from the recent Jacanidae in all three of the characters.
  More results at FactBites »


 

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