May Twenty-third
Keep watch of any brown bird about the size and shape of a female English sparrow, that you see hopping about the trees and bushes, peeping under bridges, and looking into hollow limbs of trees. She is a cowbird, or cow bunting, looking for the nest of another bird who is away for the moment. When she finds one, she will slip into it and drop one of her eggs, which will be hatched and the birdling reared by the foster mother, unless she can manage to get rid of it.