Swapping is fine. But maybe we should consider 196 鳥, since it means 'crow'. We chose 86 based on Kangxi and Unihan, but if there is no need to follow those, 'bird' is the best semantic.

For this case, the semantic rationale is that the semantic element is 烏 based on the corresponding Chinese word of “crow” 烏鴉, the phonetic element is 戈 (qua). The current only radical of 烏 is R86.0, so we use R86.0 firstly.

If we add the secondary RS for U+70CF 烏 as 196.-1, the secondary RS for U+4E4C 乌 as 196'.-1, we can consider using R196 as the preliminary radical, and SC=3 (-1+4), FS=1.





The RS for the following variants of 烏/乌 should be considered to be updated correspondingly.
U+200B6 𠂶 196.-1?


U+2CEC6 𬻆 196.-4 (-1-3)? cf. U+2B813 𫠓




U+2DD1A 𭴚 196.-1?



There are other characters related the components 烏/乌.
U+3137C 𱍼 196'.2 (-1+3)?


U+31AF3 𱫳 196.3 (-1+4)?


WS2021-01355 ⿰乌恶 196'.9 (-1+10)?
[WS2021-01355]