Yellow-billed pintail, La Cocha, Colombia

Found in the La Cocha Lagoon at about 3,000m asl. This is likely the spinicauda subspecies, the most numerous out of 3 subspecies. The georgica subspecies is rare, with an estimate of a 1000+ breeding pairs. The niceforoi subspecies is thought to be extinct.

This species is found between 2,100 and 3,800m altitude. The sexes are similar but they can be distinguished by call: the male rattles whilst the females quacks.