Posted by: Rebecca Whitham, Editor with Jeremy Dwyer-Lindgren, Communications Nadiri, our 19-year-old, soon-to-be mother, rests on some hay inside the gorilla exhibit. Photo: Jeremy Dwyer-Lindgren/Woodland Park Zoo. And now the watch begins. Gorilla Nadiri could give birth any day now. Last night kicked off the round-the-clock birth watch so we have eyes on the pregnant gorilla at all hours of the day. Volunteers Harry, right, and Sue, far left, receive some last-minute guidance and refreshers from keeper Judy, center, before the start of the shift. Photo: Jeremy Dwyer-Lindgren/Woodland Park Zoo. Zoo volunteers head in for their shifts nightly, monitoring the expectant mom overnight via a closed circuit camera. During the shifts, volunteers collect data and look for any telltale signs in her behavior that would indicate the onset of labor. A gorilla keeper is on call each night to respond if Nadiri goes into labor overnight. A keeper thumbs through paperwork the b