Speaking of arrivals - I had a White-breasted Nuthatch mixed in with the birds attracted to my feeder the other day. It is a first at my feeder location, and as far as I know was only there for one day. It didn't come to the feeder, but was in the vicinity due to the other bird activity. The forest immediately surrounding my feeder location is strong to conifer, with very little deciduous in the canopy, so I usually get only Red-breasted Nuthatches. Do this Nuthatch and your Evening Grosbeaks represent the first vanguards of the spring migration, or just the normal winter residents moving around a bit?