huáng​què​sì​chán

unaware of one's own danger

Senses

黄雀伺蝉/ 黃雀伺蟬 huáng​què​sì​chán unaware of one's own danger

(idiom) to be so focused on immediate gains that one is unaware of the hidden danger lurking behind; from a story about a siskin bird watching a cicada while a hunter aims from below

References

synonym 黄雀伺蝉/黃雀伺蟬 螳螂捕蝉/螳螂捕蟬