Grapevines, clematis, hawthorn, and dogwood plantings are the best choices for nest sites, as are shrub thickets. Providing nesting material such as small twigs, pine needles, and grass clippings will encourage cardinals to build nests nearby, though they will not use birdhouses.Click to see full answer. Similarly, you may ask, what is the best bird feeder for cardinals? Some of the best cardinal bird feeders you can buy are the following. No/No Red Cardinal Bird Feeder. No/No Cardinal Bird Feeder – check current price on Amazon. Perky Pet Panorama Bird Feeder. Brome 1024. Crystal Clear Bird Feeder. Wild Bird Care Platform. Peanut Wreath Feeder. Likewise, what do cardinal birds eat? In the wild, the adults food consist of insects, spiders, wild fruits, berries, and weed seeds. In winter the Cardinals diet is more plant based which includes seeds and berries in the wild. Some insects under leaves may be found to supplement their diet. Also, do Cardinals use birdhouses? Unlike many other backyard birds, Cardinals will not use birdhouses or nesting boxes. Make sure that your yard features pine needles, small twigs, grass clippings, and other materials so that Cardinal visitors will build a nest nearby.How do you build a cardinal birdhouse? How to Build a Cardinal Birdhouse Decide on a suitable tree branch for your Cardinal home. Clean the wire cage with a non toxic all purpose cleaner. Add the twigs, fabric, feathers and wool to the bottom of the wire cage. Cut a two-inch piece of the wire.