I woke up at dawn and heard a Northern Cardinal singing, "cheer, cheer, cheer or birdie, birdie, birdie." Both males and females sing. "Scientists have described at least 16 different calls for the Northern Cardinal, but the one you’ll hear most commonly is a loud, metallic chip. Cardinals make this call when warning off intruders to their territory, when predators are near, as females approach their nests, and by both sexes as they carry food to the nest or when trying to get nestlings to leave the nest. When one member of a pair is about to feed the other, either bird may make a softer took note." https://www.allaboutbirds.org/guide/Northern_Cardinal/sounds
A pair of Northern Cardinals, from https://commons.wikimedia.org/wiki/File:Northern_Cardinal_Pair-27527.jpg
The other notable sign of spring was seeing Wild Turkeys displaying. Their mating season begins in February. I saw the resident group of wild turkeys and the males were displaying.
