Plumage feature | S. major | S. albiventris | S. ashambuensis |
---|---|---|---|
Crown | Slaty blue | Slaty blue | Slaty blue |
Supraloral stripe | Faint blue | Whitish blue | Faint blue |
Throat | Slaty blue | Slaty blue | Greyish blue |
Breast | Slaty blue | Slaty blue | Greyish blue |
Belly | Broad white patch | Narrow white patch from centre to vent | Narrow white patch extending anteriorly from vent to breast |
Flanks | Pale rufous | Greyish blue | Greyish blue |
Undertails coverts | Pale rufous | White | White |
Upper parts | Slaty blue | Deep blue | Pale, slaty blue |