The Black and White Warbler is your classic tree creeper, often caught head down on a tree trunk or limb looking for insects in the bark. Tree cleaners. There are often several hundred at a time along the boardwalk at Magee Marsh during the Biggest Week in American Birding in May, on the Erie shore in Northern Ohio. Sony RX10iv at 600mm equivalent. Program mode with my custom birds and wildlife modifications. Processed in Polarr.