The first couple birds are Dark-Eyed Junco. They are usually around all winter long and are pretty cool little birds. They are very skittish however and very difficult to get your lens on up close. The others are House Sparrows which are much more comfortable with people. They may fly away at the slightest movement, but if you sit still they will make their way back to the food.
As always, if you would like to see a bigger version of this photo, click on the photo to be taken to my website at Alder Images.