What kind of bird is a bright orange red color and is about the size of a plumped up robin?

I think you are describing the bullfinch. The male adult is red all over it's front, with a black cap, grey upper parts and striking white rump. The female adult has the same basic plumage as the male but the front is a dull salmon-pink. Bullfinches are notorious for attacking flowering fruit trees. The juveniles are mostly brownish, but have the adult's white rump.