Cuviví is the Ecuadorean indigenous name for the upland sandpiper, a wading bird that has special significance for the communities living around the Ozogoche lakes in the middle of the Andes. Each year, these birds migrate south from North America. Around September they pass the Ozogoche lakes, where large numbers then “commit suicide,” plunging from great heights into the ice-cold water. A girl lives near the lake. Her uncle lives in the US, and she might be heading there herself. In the meantime, she awaits the arrival of the cuvivís, few of which have appeared in recent years. The lakes are drying up.

• Documentary