She is calling you. Baaawk baaawk bawk bawk baaawk is your name, literally. See how she listens for your footsteps? She knows you will obediently join the flock if she calls you long enough. This is very similar to my chicken name: bawk bawk baaaaaawk bawwwk baaaaaaaàaaeeeewk. She calls when the yummy bits of her food are gone and she wants her afternoon scraps/scratch. She calls when the neighbor down the street's chickens are calling her names. She also comes onto the porch, pecks on the door, calls, pecks, calls when there is a cat in the yard. (Could this be a problem and she's calling you, the Giant Bringer of Food, to scare it off?). If I don't respond in a timely fashion, she shows her displeasure by leaving the Biggest, stinkiest chicken 'yam' (bunny berries, chicken yams, meh,kids) right in the exact place I step out of the door.
(BTW-- that's my chix pet peeve. I get the biggest presents on my porch, in front of the door, where I step, barefoot, to check on them several times a day


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