A great blue heron takes watching for fish or frogs at NASA's Kennedy Space Center.

A great blue heron takes its familiar stance at the edge of the water, watching for fish or frogs, at NASA's Kennedy Space Center in Florida. A frequent sight around Kennedy, this large heron inhabits lakes, ponds, rivers and marshes in a range from Alaska south to Mexico and the West Indies. Kennedy shares a boundary with the Merritt Island National Wildlife Refuge that includes salt-water estuaries, brackish marshes, hardwood hammocks and pine flatwoods. Photo credit: NASA/Dimitri Gerondidakis