Spot-flanked Gallinule Porphyriops melanops

Small marsh bird with a disjunct range in South America, from central Colombia to eastern Brazil to central Chile. Note gray head and breast, warm brown upperparts, and brown flanks with white spots. Its greenish bill is distinctive. Singles or pairs can be seen swimming or walking in marshy habitat at the edge of lakes or ponds, sometimes remaining quite hidden. Unlikely to be confused, but compare with juvenile Common Gallinule, which has a dingy bill and a bold white stripe on the flanks.