I have to say that in those pictures they say like "the excessive bird waste caked on the back of this cage" for birds, at the pet store i'm at the bird cages are scrubbed twice a week, and the day before we do it, there is more than that. So that is in no way an indication of poor caring if you don't know how often they clean. Same thing for the bowl of parrot water with feathers and food in it. We change the water every day, and it is absolutely disgusting every day. Birds LOVE to poop in their water, spill their food in it, spill their water everyday.
I'm not saying they're getting amazing care, but this website is obviously exagerated.