This 10 January 2018 video from Artis zoo in Amsterdam in the Netherlands says about itself (translated):
Today two young griffon vultures (Gyps fulvus) are going from ARTIS to Sardinia to be released in the wild later this year. The birds hatched in April and May last year in ARTIS. One young bird was cared for by a same-sex male griffon vulture couple. The other vulture is the offspring of two vultures who had been injured in the wild in Spain and – after having partially recovered – were admitted to ARTIS.
See also here.
Pingback: Same-sex vulture couple’s youngster freed in Sardinia | Dear Kitty. Some blog