Two subspecies are recognized, C. h. pallidigula and C. h. hirundinacea (Storer 1970).
C. h. pallidigula: This subspecies is distinct because its underparts are paler. The throat is "warm buff to ochraceous buff instead of deep tawny to chestnut-rufous [as in nominate hirundinacea]" (Hellmayr 1936: 366), and the breast and belly are whiter, with less ochraceous tones. Also has a pale loral streak, which nominate hirundinacea lacks (Isler and Isler 1999), and the rump is white instead of cream-colored (Hellmayr 1936: 366). This subspecies is distributed north of the Amazon River (within the Sipaliwini savanna), in Suriname and Amapá, Brazil; and south of the Amazon River from northeastern Brazil in Ceará, Piauí and northern Bahia southwest across central Maranhão, northern Goiás, southeastern Pará, and northwestern Mato Grosso, Brazil, to northeastern Bolivia (Storer 1970, Isler and Isler 1999). There is a seemingly isolated population along the Rio Madeira in south central Amazonas, Brazil.
C. h. hirundinacea: Unlike the northern subspecies, C. h. hirundinacea has an amber chin and throat that contrasts with cinnamon-colored underparts. It also lacks the loral streak of the pallidigula (Isler and Isler 1999). The nominate subspecies is found in southern Bahia, Brazil, south toward São Paulo, west through southern Goiás, and southern Mato Grosso, Brazil; also in north central Paraguay (Concepción) to eastern Bolivia (Santa Cruz; Storer 1970, Isler and Isler 1999).