buteo (hawk) swainsoni (given in 1838 by Charles Lucien Bonaparte for William Swainson, English ornithologist of the early 19th century)
Friday, July 30, 1982 — 3:00 pm
Elgin, Illinois — Interstate 90 north of town
I was driving north of Elgin though an area of open farmland. I had a brief glimpse of the Swainson’s Hawk as it flew low over the expressway and made a gliding bank right in front of our car. Its wings were held in a shallow “V.”