Flightless bird requirement for flightlessness. The kiwi does not exhibit gigantism, along with tinamous, even though they coexisted with the moa and rhea that both exhibit gigantism. This could be the result of different ancestral flighted birds arrival or because of competitive exclusion. The first flightless bird to arrive in each environment utilized the large flightless herbivore or omnivore niche, forcing the later arrivals to remain smaller. In environments where flightless birds are not present, it is possible that after the K/T Boundary there were no niches for them to fill. They were pushed out by other herbivorous mammals. New Zealand had
Four Bird Brothers Four Bird Brothers The tale of Four Bird Brothers are folk legend that repeatedly appears in Lee Yeongdo's fantasy novel "The Bird That Drinks Tears" and its sequel "The Bird That Drinks Blood". In the fictional world of the series, according to the legend of "Kitalzer Hunters" there were once four bird brothers who each had taste for different kind of liquids. Sometimes in a form of story and sometimes in a form of riddle, the tale of this four brothers appears repeatedly throughout both "The Bird That Drinks Tears" and "The Bird That Drinks Blood". The tale is told