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
Blue Bird All American D3-generation All American. The All American school bus body and chassis served as the platform for the Blue Bird Wanderlodge, a luxury motorhome. The All American body was used from the beginning of production in 1963 until 1990, when Blue Bird switched from the All American platform to a wide motorcoach platform, 6 inches wider than the school bus body. Blue Bird All American The Blue Bird All American is a bus produced by American bus manufacturer Blue Bird Corporation (originally Blue Bird Body Company) since 1948 in six different generations. While originally developed as a school bus (its most