Flights of Fancy in Avian Evolution - From mousebirds to terror birds, the class Aves has encompassed a remarkable diversity of species over the past 150 million years.
Pic below is a Snowy Owl. They come down here in winter and are diurnal, but I haven't seen one lately. They like big open spaces - beaches, marshes, dumps, meadows - that remind them of the tundra. Terror bird, for rats.