Before entering the nest, Mrs. Cardinal emits a series of clicks so she always alerts me to her approach. Camera, lights, action! I tried using flash but it was way too scary for her; now I stick to existing light so that limits my opportunities. The nest is in a rose bush and light filters through it sparingly sometimes. After she makes her approach, she checks on the chicks, sometimes giving them a bit to eat, and then settling down upon them to keep them warm. As they get more mature, I suspect she’ll spend less time in the nest and more time on the hunt. For the time being, Father Cardinal does most of the hunting; sometimes he hands her a morsel and sometimes she leaves the nest and he does the feeding. It’s a concerted effort, that’s for sure. Cardinals are especially endearing to me as they mate for life and are a symbol of fidelity. See my writings, the one about cardinals, and you’ll understand better why these birds are a real treasure to me. Hope you enjoy this series of life with the cardinals.