Beautiful birds. I like the ones with the red head. I can see that some of them have a brownish head. Usually, males have the bright plumage, so I'm guessing the one with the brown head is a female. Maybe it's a juvenile that hasn't developed the red coloration.
How are you, dear friend @litguru, good morning!
That bird with the paler, brownish color is a hatchling. The chicks here take on that color from the feathers on their heads.
Thank you very much for this pleasant visit.
Have a great day.
Ah, right on! That was my second guess. It's great to see the differences between them.