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flicker and was considered a separate - species from the yellow-shafted flicker that occurs in the east.
The eastern bird has yellow wing linings and the male has a black mus^ tache, plus a red crescent on the back, of his head, which the red-shafted, flicker lacks. Both the red- and the ye^l-, low-shafted flickers have a bold, black; crescent across the upper breast. • ,v
There is yet a third flicker! This one, called the gilded flicker from his yellow wing linings, inhabits the arid’ Southwest and excavates a nest cavid ty in the giant Saguaro cactus. The. male gilded flicker has a red mustache like the red-shafted flicker and; is brown on the head like that bird; To make matters more complex, the’ gilded flicker has yellow wing linings like the eastern flicker. s
Ornithologists considered them to4' be three separate species. It accepted that two distinct species - cannot interbreed and produce' young. For instance, the chickadee and titmouse do not interbreed, even though they are very closely related;1 So far, so good.
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