A loved ground near a group of willows, where, on a slight projection they would scamper and hide. I heard one singing in a weak undertone, half warble, half song, about as the tree sparrow, Spizella mela nola, sings in the warm days of sum- mer. From this, I conjecture that tree sparrow has a different song in sum- mer. One hardly concludes with Fisher's conclusions, in his Herpes of OWLS, that sparrows are often taken by mammal eating hawks, because they resemble mice. The illusion is very striking to a person watching them run among grass, or on ground. They have a habit of throwing themselves into attacks not on the near side, but going always around a low tree, or bush, a limb or other convenient place to alight, as if a crowd of pursuers, even when not flushed,