This fact would have been of interest had the birds inhabited an open nest, or a nest large enough for them all to have had an equal opportunity to receive food; but where only two thirds of their number could be seen from above at once, and where a very little neglect would have resulted fatally, it seems remarkable that one or more, failing to receive his share of food, had not been weakened in consequence and crushed to death by more fortunate members of the brood. Nor was their physical condition the only surprising thing about the members of this Chickadee family: each individual was as clean as though he had been reared in a nest alone, and an examination of the nest showed that it would have been passed as perfect by the most scrupulous sanitary inspector. It was composed of firmly padded rabbit’s fur, and, except for the sheaths worn off the growing feathers of the young birds, was absolutely clean. Later, I observed that the excreta of the young were inclosed in membranous sacs, which enabled the parents to readily remove them from the nest. [Illustration: 30. A Chickadee family.] The last bird having been placed in the net, I attempted to pose them in a row on the perch before their door. The task reminded me of almost forgotten efforts at building card houses, which, when nearly completed, would be brought to ruin by an ill-placed card. How many times each Chickadee tumbled or fluttered from his perch I can not say. The soft, elastic net, spread beneath them, preserved them from injury, and bird after bird was returned to his place so little worse for his fall that he was quite ready to try it again. Finally, eight birds were induced to take the positions assigned them; then, in assisting the ninth to his allotted place, the balance of a bird on either side would be disturbed, and down into the net they would go. These difficulties, however, could be overcome, but not so the failure of the light at the critical time, making it necessary to expose with a wide open lens at the loss of a depth of focus. The picture presented, therefore, does not do the subject justice. Nor can it tell of the pleasure with which each fledgeling for the first time stretched its wings and legs to their full extent, and preened its plumage with before unknown freedom. At the same time they uttered a satisfied little _dee-dee-dee_, in quaint imitation of their elders. When I whistled their well-known _phe-be_ note, they were at once on the alert, and evidently expected to be fed. The birds were within two or three days of leaving the nest, and, the sitting over, the problem came of returning the flock to a cavity barely two inches in diameter, the bottom of which was almost filled by one bird.