If observing a brilliant red bird in the southern US that lacks black markings, which species is strongly suggested?

Answer

Summer Tanager

The absence of black markings on an otherwise scarlet or rosy-red bird found in the southern US during the breeding season strongly indicates the presence of a Summer Tanager.

If observing a brilliant red bird in the southern US that lacks black markings, which species is strongly suggested?
locationhabitatbirddistributiontanager