Crow 1 got its head blown to pieces by Winter's missile. The body of the Crow then crumbled to dust.
Crow 2 hit the ground hard. It let out a weak howl as it made tiny flailing motions, then stopped moving entirely. A hole in the fabric of reality opened up just underneath the Crow, and an unseen force sucked the entirety of the Crow into it with an audible popping sound, then sealed itself before Riou could get a decent look inside.
Crow 3 managed to hit Matthew with a fireball, since he was slower and not trying to dodge. Then it landed and tried to snap him up in its beak.
Crow 4, seeing two of its fellows fall, started pelting Riou and Winter with fireballs from above.