Birds of prey will strike, fly low and gather their wings
Bird of prey will attack, fly low and gather wings is a Chinese idiom, which means to mean to play hard to get and wait for an opportunity.
source
"Six Taos · FA Qi" says: "birds of prey will attack, fly low and gather wings; beasts will fight, and fall with their ears."
Examples
Good brother, and don't let your nature be angry. Wumingshi's the story of Ming Feng
Chinese PinYin : zhì niǎo jiāng jī,bēi fēi liǎn yì
Birds of prey will strike, fly low and gather their wings
by cutting out the superfluous. shān fán jiù jiǎn
do the right thing at the right time. yīn shí zhì yí
strong enough to pull up mountains and raise tripods. bá shān gāng dǐng