3ISSF. The San Lucas is island based and dramatically different; the other 2 are throughout NA. Plumage consistent. M/F differ, notably a darker crown for M and paler overall for F. SS in ebird are nigrideus, migratorius, and San Lucas. Nigrideus has "mantle blackish, breast deep rufous, throat streaks thick and coalescent". Sibley 2nd denotes a pale/nominate/dark distinction instead which may be more relatable.