Color change in the WF Amazon

[KalJ]

Curious if anyone has any additional info on the color changes in the White fronted amazon. I know the red around their eyes gets more intense and the yellow on their head turns white, but no info on when this happens in their development. Just curious

 

[henpecked]

The biggest changes start at maturity( 5-7yrs for WF) after that they just get more white and red with each molt.The white band will increase in area. The same for Yellow Front Sub-species (DYH,YNA,YCA,Pans,etc) except they lose green and gain yellow with each molt after maturity. My 42 yr old nape looks almost like a DYH with a dark beak ,LOL. And she just gets more yellow each year. i guess it's similar to us peoples "greying" with age. Generally they have more "color" the older they get.

 

[KalJ]

Awesome THANKS! You wouldn't believe how little info there is out there on that subject!!!