Amira wants to compare close up views of different bird feathers. which tool should she use

The correct answer is - microscope.

In order to be able to compare and study close up looks of feathers from different types of birds, Amira will need to use a microscope. The purpose of the microscope is exactly that, to be able to see close up looks and compare and study the things better, and since the microscope has the ability to zoom in multiple times it is the perfect tool for it.