鹭 is a general term for herons and egrets. The most commonly mentioned species is 白鹭 (great egret or little egret), which appears frequently in classical Chinese poetry as a symbol of purity and elegance.
memory
The top component 路 (road) gives the sound; the bottom component 鸟 (bird) gives the meaning - a bird that sounds like 路.
Bottom 鸟 - bird, the simplified 5-stroke form of 鳥. As the indexing radical it slots 鹭 into the bird family alongside 鸡 (chicken), 鸭 (duck), 鹰 (eagle). The heron is a tall wading bird, so the radical carries the entire meaning.
Top 路 supplies the full sound - lù read identically in the parent. It is borrowed purely for pronunciation, with no semantic link to the bird. Same phonetic strategy appears in 露 (dew), giving learners a memorable lù-cluster.
