Soon after the goldfinches had passed by, there alighted a gay Baltimore oriole, who, not content with looking at the new castle in the air, must needs try it. He actually stepped into the nest and settled down as if sitting. Who knows but he was experimenting to see if this simple, wide-open cradle wouldn't do as well for oriole babies as for kingbirds? Certainly it was a curious performance. It made an impression on him too, for the next day he came again; and this time he picked at it, and seemed to be changing its interior arrangement, but he carried nothing away when he flew. Even after sitting began, this oriole paid two more visits to the nest which so interested him. On the first occasion, the owner was at home, and gave him instant notice that the place was no longer on view. He retired, but, being no coward, and not choosing to submit to dictation, he came again. This time, a fly-up together, a clinch in the air, with loud and offensive remarks, cured him of further desire to call. More persistent than any yet mentioned was a robin. Heretofore, strange to say, the guests had all been males, but this caller was the mother of a young brood in the next yard. She came in her usual way, alighted on a low branch, ran out upon it, hopped to the next higher, and so proceeded till she reached the nest. The kingbird happened to be near it himself, and drove her away in an indifferent manner, as if this interloper were of small account. The robin went, of course, but returned, and, perching close to the object of interest, leaned over and looked at it as long as she chose, while the owner stood calmly by on a twig and did not interfere. I know he was not afraid of the robin, as later events proved; and it really looked as if the pair deliberately delayed sitting to give the neighborhood a chance to satisfy its curiosity; as if they thus proclaimed to whom it might concern that there was to be a kingbird household, that they might view it at their leisure before it was occupied, but after that no guests were desired. Whatever the cause, the fact is, that once completed, the nest was almost entirely abandoned by the builders for several days, during which this neighborhood inspection went on. They even deserted their usual hunting-ground, and might generally be seen at the back of the house, awaiting their prey in the most unconcerned manner.