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Step 1:Since this is a biology/ornithology question about bird development, I'll provide a detailed, step-by-step explanation:
Step 2:: Understanding Cardinal Coloration
Male cardinals are known for their distinctive bright red plumage, but baby cardinals do not immediately display this coloration. Young cardinals are born with a different appearance.
Step 3:: Juvenile Plumage
- Baby cardinals (called nestlings and fledglings) are initially born with: - Grayish-brown feathers - Muted, camouflage-like coloration - Sparse, downy feathers
Step 4:: Color Development Timeline
- Male cardinals begin to develop red feathers around 3 - 4 months of age - The transformation occurs gradually during their first molting period - Full bright red coloration is typically achieved by 12 months of age
Step 5:: Hormonal Influence
- The red color is triggered by testosterone - As male cardinals mature, hormonal changes stimulate the production of red pigments called carotenoids in their feathers
Final Answer
This color change is hormonally driven and occurs during their first molting period.
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