Puna Ibis

The puna ibis is a medium-sized waterbird, weighing 478–608 g (16.9–21.4 oz) and about 56–61 cm (22–24 in) tall. They can be identified by their dark purple-brown bodies, long neck, and red downward-curved bill. Their plumage has iridescence to it, offering a purple or green sheen. While there is little sexual dimorphism between male and females, a breeding adult can be recognized by its dark chestnut head and neck, with a red face and, and nonbreeding or immature individuals have white streaks on their head and neck, with a duller face. Males are also larger than females. Voice: Usually quite quiet, when disturbed puna ibis vocalize with a call that sounds like a "wut" or "cwurk". Juveniles are known to give a whispering call. The glossy ibis, plegadis falcinellus, vocalize when greeting their mates during nest relief, as well as when chicks are food-begging.