Top Row (Left to Right):

1. Juvenile (1st year) – Entirely dark brown with no white; typical of birds in their first year.

2. 2nd Calendar Year (1–2 years) – Starting to show paler facial skin and subtle lightening in underparts.

3. 3rd Calendar Year (2–3 years) – Mottled pattern with mixed brown and white feathers; transitioning toward adult plumage.

Bottom Row (Left to Right):

1. Subadult (Around 3–4 years) – Increasing white in body and wings, but still showing some darker coverts.

2. Near-adult (4–5 years) – Mostly white body and coverts with dark flight feathers; yellow face well developed.

3. Adult (5+ years) – Clean white body, striking contrast with dark wings, and fully yellow face — classic adult look.