what are birds?
⠀⠀⠀⠀⠀⢀⡀⣀⡀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⣄⠜⠊⠊⠊⡊⢣⢠⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⢠⢤⠑⠡⡂⢅⠢⡐⢌⠍⡤⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⡖⠌⡐⠠⢂⠕⣷⡇⠀⢐⠅⡁⠰⡰⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠸⠱⣑⢅⢊⠷⠿⠿⠇⠊⡀⠀⠄⠹⠱⡀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⣗⢕⢐⠑⠁⠃⡁⠂⠀⡈⠀⠄⠂⡫⣃⢄⢄⢄⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⣗⡅⠂⢀⠁⠄⠀⠂⡥⡄⠠⠂⠀⠂⢘⢘⢑⢅⢤⢤⢤⠀⠀⠀⠀⠀
⠀⠀⠀⠀⣗⠅⠀⠄⠀⠂⠁⡀⡗⡅⠀⠢⡊⢔⠌⡢⠁⠀⡁⠡⡃⣖⠆⠀⠀⠀
⠀⠀⠀⠀⠗⢍⡪⢀⠈⡀⠁⠀⠌⢜⢝⢕⢝⡐⡅⡀⡀⣁⢌⢪⢐⢀⠨⠮⠀⠀
⠀⠀⠀⠀⠀⠘⠪⡢⡡⡀⡈⢄⢁⠄⡢⢑⢐⠝⣜⢎⠗⢕⠝⣜⢵⠙⠅⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠘⠈⡦⡪⣢⢕⢬⡢⣕⢬⢬⡆⠋⡬⡢⡑⠌⠚⣄⢤⢠⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⣗⡏⠈⠈⠁⠁⢱⢳⠁⠁⠀⠈⠁⢮⡢⠢⠁⠁⡁⢆⢦
⠀⠀⠀⠀⠀⠀⠀⠎⠮⠪⠆⠀⠀⠠⠣⠳⠱⠀⠀⠀⠀⠀⠀⠨⠫⠝⠕⠧⠫⠎
we just don't know...