[What Kind of Warbler?]

Spot on!  Thanks for the expertise! 

[What Kind of Warbler?]

This bird crashed into a window and was dazed long enough for me to gently pick it up and photograph it.  I am stumped!   It later flew away on its own.  Location: south central Wisconsin Date 9/24/20.   

[What Kind of Bird?]

Thanks.  I thought I noticed a very faint dark spot on its breast in the same location as a tree sparrow. 

[What Kind of Bird?]

This bird made multiple trips to my feeder in south central Wisconsin.  It would appear to be a sparrow.  I was struck by its overall light color. One pic has it perched next to a tree sparrow.