The global population size of Yellow-crested Tanager is unknown but considered stable (BirdLife International 2016). The generation length of this species is estimated to be about 3.7 years (BirdLife International 2016). Parker et al. (1996) categorize the Yellow-crested Tanager as fairly common relative to other Neotropical birds with a center of abundance in the lower tropical zone. No information is available on the age at first breeding, survivorship, parasitism, or population regulation. The species is widely distributed across the Fitzcarrald Arch where it is fairly common (Guerrero 2010). However, it is uncommon in the headwaters of the Rio Pauya in Peru (Armacost 2006). It has also been reported as uncommon in terra firme forests at the northern edge of its distribution (Robbins et al. 1991), and rare in secondary forests at 1700 m in Peru (Robbins et al. 2011). This species, considered as a core sentinal species in mixed-species canopy flocks in mature forest (Munn 1985), is missing from canopy flocks in mid-successional habitats, and less abundant overall in early successional habitat (Robinson and Terborgh 1997). Overall, 4.5 pairs per 100 ha were recorded for this species from primary successional gradients along the Manu River, Peru (Terborgh et al. 1990). Individuals were recorded at a density of 0.38 individuals per km2 in Salvacion, Peru, and 0.34 individuals per km2 in Yunguyo, Peru (Fernández and Kirkby 2002). They were also uncommon in a survey in Bolivia where they were only recorded in low numbers in mixed flocks between 600-950 m (Hosner et al. 2009). Yellow-crested Tanager also is report as rare or uncommon in poor-soil habitats (clay or white sands) surveyed in Peru (O'Shea et al. 2015).