An EVENING GROSBEAK, overwintering on the front porch at PROWLS and waiting for other grosbeaks to return in early May, appears to be going through a striking hormonal change.
He no longer has the male’s bright yellow monobrow or yellow chest and shoulders with white wing tips but has become markedly toned down. Now with a dull white monobrow and pale golden highlights on soft gray plumage, he is looking much like a female!
Wow!