Adult males have a shaggy, mostly iridescent green, crest whose longest feather is purplish black.

[8] The green-crowned plovercrest is found in the eastern Brazilian states of Minas Gerais, Espírito Santo, São Paulo, and Rio de Janeiro.

[8] The green-crowned plovercrest forages for nectar from near the ground to the canopy, utilizing both native and introduced flowering species.

In addition to nectar, the species feeds on insects caught in flight or gleaned from leaves.

Females make a cup nest of soft plant and seed fibers bound with spiderweb.

"[8] The IUCN has assessed the green-crowned plovercrest as being of Least Concern, though its population size and trend are unknown.

It occurs in three national parks and " [r]eadily takes to man-made habitats such as farmland" as long as patches of scrub or forest remain.