They sing a warbling song and give a flight call of "pui pui pui." If you see a crested bird with a red head and short conical bill at your seed feeder it is going to be one of the cardinals.

The wide red beak comes from a black base on the bird’s face. Which Is probably the most obvious deviation from the all-red scheme. Its crest, neck, chest, and belly are all red.

Red-breasted mergansers are no exception with their distinctively shaggy head feathers. The American Bird Conservancy describes this notable feature as “a shaggy-looking double crest ...

The bird’s flight is strong and steady, with wings rarely flexed above horizontal. Polytypic. Length 11.5". A nearly unmistakable dark blue, black-crested jay with variable white or blue ...