The Wikipedia article consulted for this species gives no single global population figure; secondary web results cite conflicting uncited totals (roughly 16 million versus 29 million) with no raw source page fetched to confirm either.
What would resolve this A dated global population estimate from a named, fetchable source (BirdLife International DataZone, Partners in Flight, or the IUCN Red List assessment page) with a verbatim figure this atlas can cite directly.
OpenOrnithologyCommon Raven (Wikipedia)