Rockhopper Penguin Riverbanks Zoo and Garden announces one small and two big additions to the Penguin Coast exhibit in the Birdhouse.

A rockhopper chick, born Thursday, June 18 and two adult king penguins from the Milwaukee County Zoo, now call Riverbanks home.

The male chick, born to parents Calista and Skimmer, is the first penguin to be born at Riverbanks in five years.

This three- week- old penguin now boosts Riverbanks' rockhopper population to 14.

The two larger (and much older) additions are Niles and Fredrico, two male king penguins. The boys, both 21- years- old came to Riverbanks from the Milwaukee County Zoo.

Niles and Fredrico join Riverbanks' two king penguins, Scout and Atticus.

Rockhoppers are the third smallest species of penguin and are approximately three to six pounds fully grown.

King penguins are the second largest species of penguin and are often confused with the largest species, the emperor penguin.