BREEDING THE WATTLED JACANA Jacana jacana AT BARCELONA ZOO

摘要

The Wattled Jacana Jacana jacana is a South American species which inhabits open freshwater wetlands with floating plants on which it walks in its characteristic way with its exceptionally long toes and nails.The Wattled Jacana is 21cm-25cm (approx. 8!4in-93/4in) in length. Both sexes look alike, however, the female is larger and heavier than the male (the latter weighs 89g-118g, whereas the female weighs 140g-151g). The adults have a red bi-lobed frontal shield and lappets which contrast with the yellow bill. The iris is black. The head, neck, breast and belly are black, with the mantle, back and wings chestnut brown in five out of the six subspecies (see below). The flight feathers are yellow to pale greenish yellow with dark brown to black tips (del Hoyo et al. 1996). A carpal spur on the bend of the wing can be seen when they open their wings. The legs and exceptionally long toes (which the chicks have from the moment they hatch) are bluish-grey.