鴆 is a traditional Chinese hanzi, listed here under the keyword “a bird resembling the secretary falcon”. It is built from 冘 (to move on) and 鳥 (bird).
On KumiJi Glyph Explorer, open the parts search and type “to move on” + “bird”. 鴆 is among the results, together with every other character containing the same shapes.
Open 鴆 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.