A new study from Tel Aviv University (TAU) has examined what happens to birds that are accustomed to living around humans, when their habitat is suddenly emptied of the presence of humans. Among other birds, the researchers tested crows, ringneck parakeets (also known as rose-ringed parakeets) and graceful prinias—and the findings are surprising: While the crows and ringneck parakeets—who are characterized by their tendency to "follow" humans, are already accustomed to the noises they make and feed on their food scraps—decreased their activity, the graceful prinias, which are considered shy, actually increased their activity in the same area.