Northern rockhopper penguin colonies in a range of locations from sea level or on cliff sides, to sometimes inland. The Northern form, found in Amsterdam and Gough island, is reproductively isolated from the Crozet and Kerguelen islands. They are monophyletic; meaning they have a split in the mitochondria DNA trees which forms two subspecies: the northern and southern rockhopper penguin. Another interesting difference between the two subspecies is their mating ritual. They both use different songs and head ornaments in their mating signals. The reproductive isolation has led to not only physical difference but also behavioral. The adults feed their chicks lower trophic
Blue Bird Mini Bird Blue Bird Mini Bird The Blue Bird Mini Bird was a Type B school bus built by Blue Bird Corporation, introduced in 1977. It was dropped in the early 2000s as market tastes shifted away from Type B school buses. In 1977, Blue Bird introduced the Mini Bird as a Type B school bus. It was designed with a maximum capacity of 38 students, higher than the Type A cutaway vans of the time. In the manner of larger Type C and Type D buses, the Mini Bird was designed with a 96" (243 cm) wide body and 77" (195