ocr: ALTRICIAL YOUNG TREE-NESTING birds are altricial. GROWING FEATHERS Momdr teathers and eyes are not fully Stiff tubes show where formed when they hatch, and they cannot long flight feathers are move about or leave the nest. Altricial growing on the wings chicks rely on their parents for food and protection during the first few weeks of life. BULLFINCH CHICK This chick is four days old. It will not have fully. formed feathers or be ready to leave its nest for another three vecks. CRYING FOR FOOD
