A White-breasted Nuthatch has no negative impact on humans. That cannot be said about any human. September 10, 2020 Gail Batt A White-breasted Nuthatch has no negative impact on humans. That cannot be said about any human. Mourning Doves feed crop milk or pigeon milk to their nestlings. I have been unable to find either one of those at the local supermarket, so I’ll stick with cow and almond milk. I’ve milked many cows, but not one almond. A bumble bee is a humble bee.