...необъяснимая походка вальдшнепов..)))) время от времени очень заметное качательное движение

WOODCOCK WALK Who can explain the woodcock wobbly walk? Here a puzzling description from a serious article: “It occasionally engages in a highly conspicuous rocking motion that has been interpreted by some as a strategy for worm-hunting. However, the literature on this behavior can instead more plausibly be interpreted as an advertisement of unprofitability.“