This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
鴼 combines 鳥 (bird) and 各, which likely contributes the sound. The exact historical development is uncertain, and the character is rare.
The left side is a bird 鳥, and the right side is 各. Without a clear meaning, picture a bird with a distinctive mark on its wing, like a label, but the meaning remains uncertain.
For ロ, imagine a bird rowing a tiny boat: row -> ロ, and the bird uses its wings to row.