Males sometimes bring nest material to the female, who does most of the building. She crushes twigs with her beak until ... Nearly any bird feeder you put out ought to attract Northern Cardinals (as long as you live within their range), but they particularly seem to use sunflower seeds. read more
Cardinals do not usually use their nests more than once. The female builds a cup nest in a well-concealed spot in dense shrub or a low tree 1–3 m (3.3–9.8 ft) off the ground. The nest is made of thin twigs, bark strips, and grasses, lined with grasses or other plant fibers. read more
Northern Cardinals eat mainly seeds and fruit, supplementing these with insects (and feeding nestlings mostly insects). Common fruits and seeds include dogwood, wild grape, buckwheat, grasses, sedges, mulberry, hackberry, blackberry, sumac, tulip-tree, and corn. read more