Originally posted by boriscleto That's probably a first year male, not a female.
It has far too much streaking to be a first summer male. However, I don't have my copy of Pyle et al. (1987) with me to confirm that (Pyle, P., Howell, S.N.G., Yunick, R.P., and DeSante, D.F. 1987. Identification guide to North American passerines. Slate Creek Press, Bolinas, CA.).
I don't own a copy of the following, but it likely would also be illuminating: Jaramillo, A., and P. Burke. 1999. New World Blackbirds : The Icterids. Princeton University Press, 432 pp.