The Magnolia Warbler is a black and yellow Warble with black stripes on the breast and a yellow rump. It is impressive to first see flittering in the trees and brushes. Its habitat is in low conifers; but in migration other trees, as in this case sited. Its normal range is Canada and middle-northeast US States. It winters in Mexico, West Indies to Panama. I sighted it on the migration North for two days.
You can see the sited location at the Wehr Nature Center, Milwaukee, WI by clicking the link below.