A little ray of sunshine has been welcomed at Taronga Western Plains Zoo.
A male greater one-horned rhino calf was born in the early hours of Sunday morning at the zoo in central west NSW.
He has been named Hari by the keepers, which means sun in Nepalese.
Keeper Katharina Pollock said it was Amala's second calf and she slowly bonded with him during his first day.
"She is now very protective of him and doesn't like him being too far from her side," she said.
"We are all very excited by this new addition and it is great to see mother and calf doing well. It has been an amazing experience for many of the keepers to see the calf arrive and watch it go from strength to strength."
Greater one-horned rhinos are classified as vulnerable in the wild with about 3,700 animals remaining in north-eastern India and Nepal.
Zoo director Steve Hinks said the birth was a testament to the dedicated team of keepers and veterinary staff, who guided the introduction of Amala and the calf's sire Dora, then monitored Amala throughout her pregnancy.