Definition of Hopping:
furious, vibrant, angered, bustling, knee-deep, livid, outraged, roiled, rabid, apoplectic, humming, lively, steaming, load down, diligent, busy, ireful, indignant, foaming, wrathful, infuriate, laborious, rankled, fuming, teed off, thriving, inflamed, immersed in something, stirring, horn-mad, kinetic, happening, choleric, assiduous, aboil, rushed/run off your feet, riled, shirty, flourishing, active, buzzing, irate, abuzz, working, cheesed off, sore, astir, brisk, hot, steamed up, rousing, enraged, infuriated, riley, hard at it, abubble, occupied, rushed, ticked, wroth, employed, mad, industrious, incensed, engaged, tied-up, sedulous, animated, ballistic.
I have never detected him in a quarrel such as nearly all birds are once in a while guilty of, ungracious as it may seem to mention the fact; nor have I ever seen him hopping nervously about and twitching his tail, as is the manner of most species, when, for instance, their nests are approached.- "Birds in the Bush", Bradford Torrey.
- "Winds of the World", Talbot Mundy.
- "Ralestone Luck", Andre Norton.