The photos of the "red factor grays" have been exited. The first photo of them is reaaaaallllly badly done. They just literally colorized it, increased the saturation and fiddled with the brightness/contrast. You can see a red halo around them where they didn't crop it properly or accidentally selected things they didn't mean to. Their masks and parts of their feathers are just completely whited out thanks to the contrast efect they used to try and make the red feathers look more textured, while the redder feathers just look off because of how saturated they are. Their feathers have just blended into a solid mass of red.
I draw as a hobby, this was done in GIMP. It's a program that isn't really all that good and often gives me the same issues when I use it to work on stuff I've drawn and scanned in.
The second looks more real, but if those are real birds, they're very sick or are a different species of bird.