A large bird native to Sub-Saharan Africa has been spotted in northeast Wisconsin. The black and white Marabou stork can grow up to nearly 5 feet tall, with a wingspan of 10 feet. So Mark Stevens of Sheboygan was surprised, and a little scared, to see one picking at frogs and bugs in the ditch in front of his house. “We’ve had sandhill cranes in our backyard before … but this one is definitely bigger than that,” Stevens said, estimating that this particular stork is about 3.5 feet tall.