Assertion: tanager | /r/PartOf | large group of birds
Facets:
value: very
type: DEGREE
Source sentences:
text: D. C. Writing in 1987, when the DNA-DNA hybridization studies by Sibley & Ahlquist (1990) were just advance rumors, Isler & Isler wrote this about tanagers, which they had already reduced them to a subfamily, the Thraupinae: "Tanagers belong to a very large group of birds known as nine-primaried oscines (or songbirds)...