Milwaukee County Parks publishes a map of the Oak Leaf Birding Trail which includes an innercity loop that passes through four parks; Pere Marquette, Red Arrow, Zeidler, and Cathedral Square. A break in the weather tempted me into a longish lunch break during the conference to wander the loop.
Despite being quite small parks, they seem to play an important role as links between larger reserves, providing a corridor for birds and wildlife. The route also passed alongside the river, were there were ducks and geese, as well as gulls. There were a number of warblers hunting for insects, the Tennessee Warbler spends its summers in Canada, and was passing through Wisconsin on its way to Central America.
Tennesee Warbler (Pictured above)