If you counted zero, nada, zilch, you are not alone. Since before Thanksgiving, I have seen very few birds at our feeders.
In an email to Hugh Kingery, of the Audubon Society of Greater Denver, said that several people all along the Front Range have commented on the lack of birds at their feeders. He feels that there are fewer coniferous (spruce, pine and fir) tree cones for the seed eaters to feed on, but others say that their berry bushes are full of berries, with no birds eating them.
So far, nobody has any speculation on where the birds went, either.