This pigeon does something that most homing pigeons do not do: it takes the scenic route,  which was a device that I felt was necessary to actually extend this book beyond about four pages.
这只鸽子做了一件其他鸽子归巢时不做的事： 它选择了一条观光路线。这个设计 用来把书延长个四页 再好不过了。