twitching

The motion of something that twitches.

Your twitchings and jouncings disturb me excessively.

Birdwatching by people (twitchers) who travel long distances to see rare species or add a new species to a personal list.

Between the scientific austerities of the Rarities Committee and the worst excesses of those suffering from the twitching syndrome (vide the man whose wife managed to deflect him via the telephone and the AA at Newmarket from a Bluethroat in Norfolk to a Wall-creeper in Dorset) lies a considerable body of bird people who are deeply interested in the migration patterns of Ross’s Gull and its appearance at Teesmouth[.]

Using a horse team to pull logs.

A great deal of horse-work was therefore required, and in twitching the logs[..]

That twitches.