36 BRITISH BIRDS. 
and others hold an intermediate view, which appears to me to be the 
correct one. It cannot, however, be denied that, in confinement, red males 
change to yellow after their first moult, and only differ from females in 
not being quite so green ; they never reassume the red plumage. Yellow 
males occasionally occur in a wild state, and are possibly old and barren 
birds. 
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