It’s a mystery that’s been perplexing bird experts – why some ‘yellow shafted’ Northern flickers have been spotted with abnormal red feathers. As their name suggests, the medium-sized woodpeckers ...

For the yellow-shafted northern flicker, “you are what you eat” has proven freakishly true. These eastern North American woodpeckers get their name from a thin vein of yellow that runs through the ...