A hawk is most likely to feak just...

Feaking is a behavior displayed by hawks where they wipe or rub their beaks on a surface, typically after eating. This action serves multiple purposes, including cleaning the beak of any blood or feathers left from the prey, which is particularly important after a meal to maintain hygiene and ensure that the beak remains sharp and in good condition for future hunting.

Understanding this behavior is crucial for falconry, as it indicates the hawk's state and readiness for future hunting or handling. While hawks may show other behaviors like feaking after bathing or before making a kill, it is most characteristic and expected right after they have consumed food, making the option about timing after a meal the most accurate choice.