A small, relatively short-tailed prinia with a fine black bill. Usually found in scrub forests and undergrowth along forest edges and forest clearings. Breeding birds have a distinctive gray breast band, gray upperparts, and no eyebrow. Nonbreeding birds lack a complete breast band and have a short eyebrow. An active bird that often occurs in flocks. It makes a wide variety of sounds including buzzy songs which it sings from high, exposed perches. Nonbreeding birds are similar to Rufescent Prinia, but Gray-breasted Prinias have a shorter eyebrow, more contrast between the pale throat and darker chest, and a different call.