Birdbath with female cardinal
(ehpien / Flickr)*
(ehpien / Flickr)*
Ruby-throated Hummingbird, Archilochus colubris, male. (Rick from Alabama / Flickr; cc by 2.0)
Raven playing with a twig. (Lennart Tange / Flickr; cc by 2.0)
Martha, the last Passenger Pigeon, died in 1914. (PD)
Northern Cardinal in a snowstorm. (© Carolyn Russell)
Red-headed Woodpecker. (Mdf / wiki: cc by 2.0)
Red-Belled Woodpecker male (Maria Corcacas / Stockxchng; CC)
Ruby-throated hummingbird. (Francesco Veronesi / Flickr; CC*)
(WelcomeWildlife.com)*
(© Cathy Keifer / Dreamstime)