Angola, Benin, Cameroon, Central African Republic, Congo [The Democratic Republic of the], Congo [The Democratic Republic of the], Côte dIvoire, Equatorial Guinea, Gabon, Ghana, Guinea, Guinea-bissau, Kenya, Liberia, Malawi, Mozambique, Nigeria, Sierra Leone, Sudan, Tanzania [United Republic of], Togo, Uganda, Zimbabwe.
Vagrant to Gambia.
Forests from Gambia (one record) and Guinea-Bissau east to extreme southern Sudan (Bengengai), Uganda and north-western Tanzania (north of Bukoba), south to northern Angola and southern DRCongo (south-western Katanga); also disjunctly central and southern Kenya and coastal Tanzania south to southern Malawi, eastern Zimbabwe and Mozambique (south to Inhambane and Limpopo districts).
 
Population
Estimated population is unknown (2010).
Black-and-white Shrike-flycatcher (Bias musicus) [XC762369]
by James Bradley from Lope NP, Ogoou\u00e9-Ivindo, Gabon (song)
Black-and-white Shrike-flycatcher (Bias musicus) [XC196466]
by Peter Boesman from Kinkiizi, Kanungu, Western Region, Uganda (song)
Subspecies
No subspecies.
Some authors separate birds from Angola as subspecies pallidiventris, birds from Uganda as femininus, those from Kenya and eastern Tanzania as changamwensis, and those from Zimbabwe, Malawi and Mozambique as clarens, on basis mainly of paler and more spotted plumage (of female and immature male). However, these characteristics are variable and naming of geographical subspecies considered unwarranted.
The following 3 subspecies are recognised:
musicus (Vieillot, 1818) - Western, central, south-eastern.
changamwensis van Someren, 1919 - Kenya to eastern Tanzania.
clarens Clancey, 1966 - Southern Malawi to eastern Zimbabwe and Mozambique.