Silver Gull - 1st immature breeding.

["Mark and Amanda Young" <>]

G'day everyone,

 

This link is to a picture I took of 2 Silver Gulls. http://bit.ly/lYaTec 

Using HANZAB as a guide, it has the bird on the left as a 1st immature
breeding, and the bird on the right as an adult in breeding plumage. My
question is does anyone know if the bird on the left will actually breed
whilst in this plumage, or will it wait until it gets its full adult
breeding plumage before it breeds? (Could they be the birds that are
referred to on page 534 where it says 'Gulls breeding after first peak
[breeding] mainly inexperienced birds'?)

And why is it called 1st immature breeding plumage when it looks more like
the 1st immature non-breeding rather than the adult breeding plumage?

 

Regards,
Mark

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