It's just what it's name implies... A blackbird with red on it's wings!
 
They are very common in North and much of Central America. 
The common name for this species is taken from the mainly black adult Male's distinctive red shoulder patches, or "epaulets", which are visible when the bird is flying or displaying. At rest, the male also shows a pale yellow wingbar.   The female is blackish-brown and paler below. The female is considerably smaller than the male, at 17-18 cm (7 inches) length and 36 g weight, against his 22-24 cm (9.5 inches) and 64 g.
Young birds resemble the female, but are paler below and have buff feather fringes. Both sexes have a sharply pointed bill.