This is the only member of the genus Metopidius characterized by a red lappet at the base of the bill. Some sources describe the frontal shield as red while HBW claims that the frontal shield turns red during a brief period of courtship. These claims are questioned by Chandler who argues that the red is limited to the tiny wattles at the base of the bill.Reference to the Oriental Bird Club online photo collection suggests that Chandler is probably correct. The frontal shield varies from lead-gray (as in this photo) to bluish.
Jacanas are famous for their very long toes which allow them to spread their weight so that they can walk on top of floating aquatic vegetation. They are also noted for polyandry in which females mate with multiple males who build the nests, incubate the eggs and care for the chicks. Canon PowerShot SX50 HS
This is a juvenile showing dull pinkish lappet.
References:
Chandler, R. (2009). Shorebirds of North America, Europe, and Asia: A photographic guide. Princeton.
Jenni, D.A. & Kirwan, G.M. (2016). Bronze-winged Jacana (Metopidius indicus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/53742 on 20 June 2016).
Rasmussen, P.C. & Anderton, J.C. (2005) Birds of South Asia. The Ripley Guide. Vols. 1 and 2. Smithsonian Institution & Lynx Edicions, Washington, D.C. & Barcelona.