The newest baby birds at Zoo Atlanta may take a little while to grow into their looks. Two Toco Toucan chicks hatched around St. Patrick’s Day – a success for a species that can be difficult to breed in captivity.

The chicks are healthy and thriving in an off-exhibit building, where they are currently being hand-reared by Zoo staff. Toucan chicks have soft beaks, which increases their risk of injury in the first few weeks before they fledge. As a precaution, Zoo Atlanta staff removed the new arrivals from their parents’ nest when the chicks were 3 weeks old.

Native to South America, Toco Toucans are the largest and most recognizable of the toucan species sporting black plumage, white throats and bright orange bills.

Check out the chicks at just four weeks old below!

Photo credits: Zoo Atlanta