The participle ἠγκυλωμένος (from ἠγκυλῶ, to bend or curve) functions here as a periphrastic perfect participle describing the subject's state, yet it is used idiomatically to depict the physical posture of birds (and by extension, the characters in the play) hunched or crouching in anticipation. While the perfect participle of this verb is attested in other contexts to describe bent limbs, its application here to the collective action of 'all some' (πᾶς τις) creates a vivid, almost caricatured image of a flock simultaneously coiling, which is central to the play's central conceit of birds building a city in the sky (Nephelokokkygia). This usage is distinct from the more common ἠγκυλῶ meaning 'to hook' or 'to catch' in a literal sense, instead emphasizing the curved, predatory stance of the birds.