Mockingbird was produced by Buddy Miller. In his review for AllMusic, Thom Jurek wrote that it "is a natural sounding set of covers that runs the gamut from rock and barrelhouse blues, to jazz, country, and traditional and indie folk." The title track, the only original song on the album, written by Moorer, is "a breezy acoustic ballad." Moore's rendition of Patti Smith's 'Dancing Barefoot' "has to be heard to be believed" and is "a contender for best track on the set." After raving over Moorer's creative and emotional interpretations of many of the album's other tracks, Jurek concludes by claiming that Mockingbird is her "warmest, most ambitious, and gutsy record yet."