The House of The Seven Gables by Nathaniel Hawthorne Chapter 10 Page 9

At times, it seemed as if for every one of the hundred blossoms there was one of these tiniest fowls of the air, — a thumb’s bigness of burnished plumage, hovering and vibrating about the bean-poles. It was with indescribable interest, and even more than childish delight, that Clifford watched the humming-birds. He used to thrust his head softly out of the arbor to see them the better; all the while, too, motioning Phoebe to be quiet, and snatching glimpses of the smile upon her face, so as to heap his enjoyment up the higher with her sympathy. He had not merely grown young; — he was a child again.

Hepzibah, whenever she happened to witness one of these fits of miniature enthusiasm, would shake her head, with a strange mingling of the mother and sister, and of pleasure and sadness, in her aspect.