@21308 Well, as long as the bird was comfortable and the environment or the kids weren't stressing them out, I don't see a problem. Some birds are more camera shy than others, and there's nothing wrong with putting a bird on your head as long as both the person and the bird are comfortable. Emi actually loved posing for cameras and she had a particular fondness for heads, so a lot of my friends would ask me to and Emi would be more than happy to. Never paid anyone for it. XD
I'd have to see the actual bird itself to tell whether or not it was healthy.
I have pretty mixed feelings about bringing the bird outside, if the photo shoot was done there. It depends on individual cases, but a lot of pet birds aren't used to them and are easily stressed out by all the unfamiliar sights and sounds, especially things like cars, and outdoor animals could pose a threat.