Bird calls can be iconic, and to many Missourians, some have come to define landscapes. Waking up to the complex song of an eastern meadowlark in grassy fields at dawn, the gentle "coo" of mourning doves throughout the day, and rocking on the front porch to the playful song of the whip-poor-will on a warm summer's night. However, one iconic call has not been heard in Missouri's landscapes for some time: the "rubber ducky squeak" of the brown-headed nuthatch.