Atricial baby birds:
Naked with Mouth -> fluff with Mouth -> awkward feathers with Mouth and also Legs -> mostly coordinated feathers with Legs and Wings -> adult (mostly Wings)
Precocial baby birds:
Fluff with Legs -> awkward feathers with Legs -> mostly coordinated feathers with Legs and Yelling -> adult (more Yelling)
BettSplendens Tumblr Evac 