What the heck is eating my kale?!
Those green caterpillars are eating your kale. Hungry, hungry caterpillars.
Probably "cabbage worms"
Look under Life Cycle to see your green guys
Collect them in a pail of soapy water to kill them. Another treatment for a minor population of cabbage worms is neem oil. It won't kill the insects directly, but it will prevent them from feeding on your plants.