I ran into herd of these bullet-noses last fall on my way to Palo Duro Canyon, on the Texas Panhandle. Palo Duro is a canyon and a state park on the eastern rim of el llano estacado, a huge mesa, which stretches into eastern New Mexico. A piece of my new novel is set there. Mostly, though it's is set in Frankfurt, in the nineteen-twenties and thirties.