fluttering

“It is indubitably certain, therefore, that he is able to attend, and actually attends, to all things at the same moment; to the motions of a seed, or a leaf, or an atom; to the creepings of a worm, the flutterings of an insect, and the journeys of a mite […]”

“Miss Greta closed her eyes. Quickly, however, did she open them again; for a dull noise, with certain whiskings-about and flutterings, together with low clatterings, approached her ear.”