the g [illegible] (64) we have been having lately. After eating from my hand, Brown- eyes climbed up into a small oak, and made a survey of the sur- rounding country and then returned for more food. Green-eyes in the nest suddenly called (the first few notes of the Thrasher song), Brown-eyes looked up and started for the nest. not quite I did likewise. Looking at my watch, it was 9:30. As I watche d the nest (18 inches to two feet from my eyes) Brown eyes climbed into it on top of Green-eyes, who opened his bill and "bubbled", touching his mate on bill and cheek. She felt under him with her bill and they "talked", Brown-eyes hovering him just as if he were a young bird, he mildly protesting. At last nothing but his head and beak showed out from under her. Oc- casionally he would nestle down even more closely to the eggs and she would spread herself out even more and have to close one eye to keep from getting her feathers in it. (It looked exactly as if Green-eyes had called for more steam to be turned too on to the "radiator" as if he were either cold or thought the eggs were, so called for help. They remained quiet for several minutes, then Green-eyes squirmed and began "talking" and touching his mate on bill and cheek and pecked gently at one of her eyes (which she closed) as if telling her he was roasting or was having the breath squeezed out of him or something; but she would not leave until she was ready. This "double incubation" lasted 15 minutes by the watch. Naturally I wondered if this episode might not be an accompanying feature of the hatching off an egg, but there was no way of finding out without disturbing the birds and this I do not care to do. It is noted that there was no change of shift here, there were no enemies in sight and the call came from the nest. In all but one or twice two instances, the signal for change of shift has been given by the bird on the ground. This almost completes the 18th. day of incubation for the first egg.