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Young Robin
Three clues in this photo provide evidence that this robin is a juvenile:
  • The fluffy, speckled breast. The downy feathers will be pushed out by orange-red adult feathers.
  • The soft, wide, orange beak. In a few weeks, the corners of the beak—called the gape—will narrow and harden.
  • The open beak begging for food. Juvenile males don't sing until they're of breeding age; female robins don't sing at all.

Robin: Juvenile Robin
Larry Koob