Every migration season is different, and if one species dominates this fall migration in Chicago, it has been Swainson’s Thrushes – I have seen them everywhere, almost every day, and this has been going on the entire month of September.
In the forest preserves I have counted so many they have sometimes seemed to outnumber the Robins. The second most numerous species in the preserves has perhaps been Northern Waterthrushes. But I have seen Swainson’s even in downtown Chicago.
It has gotten to the point where I have stopped taking pictures of the Swainson’s Thrushes because it’s unnecessary just to document their presence. But then every once in a while there have been models that were hard to resist.
Today at LaBagh Woods, the Robins and the Swainson’s Thrushes were foraging from rocky shoals in the Chicago River.