Several shots from different angles of biologists at "Laurel Maryland USA Patuxent Wildlife Research Center" checking whooping crane eggs, weighing whooping crane chick #252 called "Sidney" by the crew, putting eggs in hatching cage. Shots of man doing night rounds of incubators and hatching cages department. More shots of Dr Ray Erickson and Eugene Cowan, measuring eggs, weighing eggs, washing eggs. CSs, HASs, of a man feeding one 24 hour day old chick and one 64 hour day old chick in brooding pen #2. CS to MCS of Eugene Cowan placing baby whooping crane chick in brooding pen. MCSs of Ken Kepler in blind observing actions of chicks.