A had a large mouse in the morning which T had tried unsuccessfully to swallow. It was trimmed down about one quarter in bulk for him by removing a slice (mostly skin) parallel to its spine and from one flank. These birds are not great eaters, at least do not eat frequently. Archie had only one other meal during the day, and wanted no more. Terry eats oftener. Neither begs for food at all. They are beginning to take notice of each other, nibbling each other's bills and sometimes feathers. ... They preen often and sometimes work on the others feathers (before discovering the mistake?) They have a snarl like a cat when one steps on the other by accident. The sounds made by them in the nest remind one more of young mammals than of birds. They grunt, croon and mutter and occasionally whine. There is also a sort of mew. It was soon noticed that Terry shakes his head (usually twice) when spoken to, the response being instantaneous. It was found that he responded to all tones within the compass of my voice, giving some indication of the range covered by their auditory apparatus. The excrement is still inclosed in a membranous covering. The act of excreting is accompanied by much wriggling and tail wagging and mild ooks and complaining sounds. An effort is made to discharge the waste matter over the edge of the nest, usually with a distinct popping sound. They are what a human mother would call "good" babies. June 15th. About 4 P.M. yesterday the young quail, who have been force-fed entirely for 5 days, suddenly discovered that they could eat for themselves and began tapping vigorously on the bottom of their box, picking up food and particles of sand. Shortly afterwards