The Virginia Zoo is welcoming its first baby southern white rhinoceros.

The male calf was born to mom, Zina, and dad, Sibindi, on July 11, zoo officials announced Monday. He is strong, nursing well and is bonding with his mother, who is showing signs of good mothering, officials said.

The calf is the first of his species to be born at the zoo in Norfolk, and his birth brings the zoo’s rhino count to four.

Zoo veterinarian Tara Reilly examined the calf about 36 hours after he was born, and he weighed 125 pounds. He is 22 inches tall and 36 inches long.

The International Union for Conservation of Nature classifies the species as near threatened because of threats in the wild from habitat loss and illegal poaching for their horns.

Africa’s southern white rhino population grew from 2007 to 2012 to an estimated 21,300. However, the population declined by 15 percent between 2012 and 2017. This decline is mostly because of poaching. It’s northern white rhino cousins are critically endangered and probably extinct in the wild. The black rhino is critically endangered, but its population has seen a slow increase due to conservation efforts mostly against poaching.

The new calf needs a name, so the zoo is auctioning off the right to name him. The auction runs through July 30, and proceeds will go to the International Rhino Foundation.