Đặt câu với từ "tail feather"
1. From left to right: alula, primary covert, primary (with an emergination of the inner and a notch of the outerweb), secondary, scapular, secondary covert, tail feather.
1. From left to right: alula, primary covert, primary (with an emergination of the inner and a notch of the outerweb), secondary, scapular, secondary covert, tail feather.