Personally, I have a strong feeling for the succession. Ives Chor wrote to point out that this is a football idiom. Aegolius arcadicus . The only tiny tuftless owl likely to be seen in the central and eastern states. Common call is a long series of short whistles.
Range covers the entire United States, with the exception of the far southeast.
At least 9 different vocalizations reported. A high pitched tsst call apparently given only by females, usually in response to the male's advertising song or the shorter version of it given before visiting the nest. A short, insect-like buzz reported during a threat display. The American Ornithologists' Union and the Academy of Natural Sciences. Advertising song usually given from high but concealed perches, e.g. from within the crown of a tree.