Immature birds lack the red face and have a yellow bill.

Immature birds are dark brown with a black bill and no white tail tips.

Immature birds are similar in appearance to the adult female.

The colors are not as bright on the feet, legs, and bill of immature birds.

Immature birds have dark brownish eyes until around two years of age.

Immature birds have a green head and a grey chin.

Immature birds are like the female, but with blue restricted to the face and throat.

There seem to have been fewer young immature birds around.

Immature birds are similar to the female, but have an orange-pink bill instead of black.

Female and immature birds are similar to the male but paler.