Great auk (Pen Gwyn in Welsh), or, because the great auk had such large white circles on its head. When European explorers discovered what today are known as penguins in the Southern Hemisphere, they noticed their similar appearance to the great auk and named them after this bird, although biologically, they are not closely related. Whalers also lumped the northern and southern birds together under the common name "woggins". Standing about tall and weighing approximately as adult birds, the flightless great auk was the second-largest member of both its family and the order Charadriiformes, surpassed only by the mancalline "Miomancalla". The great
Birds of the Amazon birds that breed in the northern and southern hemisphere but migrate to the Amazon rainforest for food and shelter that are not available at their breeding places during cold months. Migrating birds greatly rely on rainforests for food, rest and recovery after their dangerous migration during which they can lose 30% of their body weight. Since the 1970s, cattle pasture has been the leading cause of deforestation in the Brazilian Amazon. Land is often cleared for investment purposes due to pastureland prices exceeding forest land prices. In this case, large amounts of forest are torn down and replaced with savanna