ὅσα ἦν νενοσσευμένα ὀρνίθων γένεα → as many species of birds as had their nests, all the other kinds of birds which had been hatched
προσεπιτάσσομαι: Μέσ., λαμβάνω, παίρνω τη θέση μου, σε Πολύβ.
Mid. to take one's post, Polyb.