Four days later I set up my camera before the door to the Chickadee’s dwelling, and, without attempting to conceal it, attached thread to the shutter and retreated in the undergrowth to a distance of about twenty-five feet.

After having had most discouraging experiences with several birds, who had evidently regarded the camera as a monster of destruction, and had refused to return to their nests as long as the evil eye of the lens was on them, it was consoling to find a bird who had some degree of confidence in human nature as represented by photographic apparatus.

It is true that the female—and throughout this description I assume that the bird with much-worn plumage was of this sex—promptly left the stub at my approach; but when I retired to the undergrowth there was no tiresome wait of hours while the bird, flitting from bush to bush, chirped suspiciously, but almost immediately she returned to her home.[27] The camera was examined, but clearly not considered dangerous, its tripod sometimes serving as a step to the nest entrance. The click of the shutter, however, when an exposure was made as the bird was about to enter its dwelling, caused some alarm, and she flew back to a neighboring tree, and for some time hopped restlessly from limb to limb.

The male, who had previously kept in the background, now approached, and, as if to soothe his troubled mate, thoughtfully gave her a caterpillar. She welcomed him with a gentle, tremulous fluttering of the wings—a motion similar to that made by young birds when begging for food. He, however, made what appeared to be precisely the same movements when she perched beside him.

27. Chickadee at nest hole.

It was not long before the female became so accustomed to the snap of the shutter that in order to prevent her from entering the nest I was forced to rush out from my hiding place; but at last, apparently becoming desperate, she succeeded in returning to her eggs in spite of my best efforts to prevent her.

There now ensued a very interesting change in the bird’s action. It will be remembered that at first she had left the nest on hearing me approach, while a light tap brought her through the opening with startling promptness. But now, evidently realizing that a return to her duties of incubation could be made only at great risk, she determined under no conditions to leave her eggs. In vain I rapped at her door and shook her dwelling to its foundations; no bird appeared, and not believing it possible that under the circumstances she would remain within the stub, I felt that she must have left without my knowledge, and therefore retired to await her reappearance.

28. Chickadee at nest hole.