Tapaculos are small, plump, short-tailed, mostly gray birds that are as sneaky as mice. Silvery-fronted is the only tapaculo in its range, and the male has a distinctive whitish eyebrow. Also look for browner flanks with dark bars. Females don’t have the white eyebrow but are still distinctive in range because of the overall dark color and extremely furtive habits. Rarely seen well; stays on or near the ground in the forest understory. Listen for the song: a series of chips starting off fast, gradually getting slower and louder.