Apex scavenger movements call for transboundary conservation policies.

Highlights: [•] A species breeding in a country and feeding in other challenges conservation efforts. [•] Every day condors cross several biomes, and political and geographical barriers. [•] No standard protected area may include the area used by this species in a day. [•] Individual-level approaches integrating factors shaping movement ecology are mandatory. [•] Our results impose new challenges for cooperative international, regional and local efforts. [Copyright &y& Elsevier]