There are many areas of the biology of Spotted Tanagers that are poorly studied. In particular, the breeding biology of this species is unknown. The nests, eggs, clutch size, incubation, and parental care remain undescribed. Other areas where more information is needed include molt, sexual behavior, predation, and demography.
High levels of DNA sequence divergence between Andean and Amazonian populations, coupled with habitat differences and a large gap in the distribution, strongly suggest that more than one species is involved. Thus, a population genetic study with more intensive geographic sampling is clearly warranted.