What is Peck ?
Peck is (noun) 1. a bite with a bird’s beak Be careful when you feed the parrot he can give a nasty peck. 2. a little kiss He gave her a peck on the cheek. (verb) 1. (of a bird.) to bite with a beak Hens were pecking around in the yard. 2. to peck at food to eat a little food, taking little bites She’s not feeling very well she’s pecking at her food.
source: Easier English, Student Dictionary Upper Intermediate Level