12ISSF! 17Form! What?! RECR is very widespread globally, so many, many types exist. Even more perplexing, many SS in the "new world" overlap, which BOW notes as "violating a basic tenet of subspecific designation". Plumage consistent, but variety amongst SS. M/F differ, with male more red and female more olive, graying, greenish, or yellowish-greenish.