Arthritic vulture reunited with partner after jab

Bernard, a 28-year-old vulture with arthritis, has been reunited with his partner, Twinkle, following stem-cell treatment.

The Eurasian black vulture underwent a leg injection in a procedure that conservationists have said is a "turning point for wildlife medicine".

Bernard and Twinkle, the pair that produced the first UK-born Eurasian black chick, are now able to go back to courting and nes- building together.

The Horstmann Vulture Trust runs one of the world's biggest sanctuaries in aviaries near Llandeilo, Carmarthenshire, and said improving the health of endangered species in captivity could be the key to the survival of some.

Video edited by Erin Lister