Puffin eggs typically incubate for between 40 and 45 days. When the young birds hatch, they're called pufflings.

SOUTHWEST MIAMI-DADE, FLA. (WSVN) - Zoo Miami had several eggs for unique bird species from tropical America, Asia and Africa hatch just in time to celebrate their first Mother’s Day weekend.

New study from the University of Sheffield, IoZ, and UCL found more than one in six bird eggs fail to hatch Hatching failure increases as species decline, so the new research could be used to ...