The two bluebirds differed in intelligence. The female was quicker to take an idea, but the male sooner conquered his fear. The first time I offered meal-worms to them she was so lively as to secure more than her share; but he learned in a day or two that worms were to be had outside, especially on my desk, when he at once flew over to me and demanded them, in the funniest little defiant way, looking at me most significantly, and wiping his bill ostentatiously, then jerking himself with great show of impatience. Words could not be plainer. Neither of them had difficulty in telling me their food-dish was empty; they stood on the edge and looked at me, then scraped the bill several times, making much noise about it, then looked at me again. I knew in a moment, the first time, what they wanted. When the male found out that another bird alighted on a stick I held out to him, and was carried off upon it, he seemed to be seized with curiosity, and the next time I offered it he jumped upon it beside the other, and allowed himself to be lifted to the desk. At one time, in flying around, he caught his feet in the coarse net curtains I hung before the windows to keep strange birds from trying to fly out. I went at once to him and took him off. He scolded, fluttered, and pecked, and, when I had released him, flew directly against another curtain and caught again. I went over to him, and this time he understood that I was helping him; he neither struggled nor pecked, and flew quietly when I set him free. The bluebird never showed any curiosity about the room or the world outside the windows, but sat on his door perch for hours, with a sharp eye to the worm supply. The appearance of the cup that held them was a signal for him to come down and beg for them, but his little mate never dared trust herself on the desk, though when I threw a worm on the floor she invariably secured it. So fond was she of this delicacy that she once played a saucy trick upon a scarlet tanager. Having received a worm, he went into the first open door he saw,--which happened to be the bluebird's,--to find a place to manipulate the morsel, which he never swallowed whole. Madam stood on the perch just above the entrance, and as he came in she leaned over and snatched it out of his mouth, swallowed it, wiped her bill, and turned to him, ready for another. His stare of blank amazement was amusing to see, but he quickly made up his mind that it was not a safe place to eat, and when I gave him another he went to the roof of the same cage. She instantly mounted the top perch, put up her bill and seized the worm; but he held on, dragged it away, and then retired to his own cage with it. She positively could not resist this temptation, and even from her own cherished spouse she would sometimes snatch the desired tidbit.