Pin feather protective peripheral sheath, longitudinal barb ridges, and growth plates. Over time these barb ridges lengthen helically, branch to create barbs and barbules, and fuse to form the rachis or central shaft. Moreover, the barb plate further differentiate into hooklets and cilia, while the marginal and axial plate die to form the intervening space within the feather structure. During moulting, a bird may get careless and begin to chew at its feathers and might accidentally damage a blood feather. To prevent this, it is necessary that the bird is given chewing toys so that it does not chew at its own
Calamus-Wheatland High School 1A school (Iowa's smallest schools enrollment tier), according to the Iowa High School Athletic Association and Iowa Girls High School Athletic Union. The school is a member of the thirteen-team Tri-Rivers Conference, which comprises schools from rural communities in Clinton, Jackson, Jones, Buchanan, Delaware, and Linn counties. The men's varsity basketball team finished second in the 2010 state basketball tournament, falling to the Siouxland Conference's Rock Valley High School. Calamus-Wheatland High School Calamus Wheatland High School is a four-year comprehensive high school located in Wheatland, Iowa. The school is part of the Calamus-Wheatland Community School District, and has an enrollment