قَرَاضِبَةٌ مِنْ كُلِّ حَيٍّ كَأَنَّهُمْ أَلْقَاءُ
A gathering of fierce men is likened to predatory birds.
The tenor is the assembly of qarāḍibah, the vehicle is alqāʾ (eagles or similar birds), and the explicit comparison marker is kaʾanna. The shared quality is inferred from the context: sudden movement, force and an aggressive presence.