It's still there

 

I just (April 13) checked, and the grounded iceberg is still located southwest of South Georgia Island. Where it is located, I don't think it's a problem for marine and semi-aquatic wildlife, avian or mammal.

World’s Largest, Oldest Iceberg Runs Aground Near Antarctic Island

"After a leisurely five-year journey, the ginormous iceberg A23a appears to have run aground near the Southern Ocean’s South Georgia Island, according to the British Antarctic Survey.

A23a weighs nearly a trillion metric tons, making it the world’s largest active iceberg. It calved from Antarctica in 1986, making it the world’s oldest berg. And now, after drifting for half a decade, A23a has grounded itself about 56 miles (90 kilometers) south of South Georgia."