Well, that's generally how it's been around here and we had a few before we left for Costa Rica but upon return I've seen exactly one chickadee and not one Downy, or nuthatch etc. All I can think is food is now plentiful elsewhere and maybe mating has them more secluded. Robins should be back but I see none so far. Of course we have magpies and crows! I'm Edmonton area rural. However, I'm enjoying being attacked by my Canada geese.Not sure what area you live in out in Alberta, but in LaSalle, Ontario, next to Windsor, we have a good variety in our area. My wife keeps a journal some days on what we see on our property. On April 17th we saw a Junco, Wild Turkeys, Gold Finch, Fn Starling (my wife's words), Cardinal, Large Nut Hatch, Red Wing Black Bird, Robin, Grackle, Sparrow, Fn Goose, Mallard, Red Bellied Woodpecker, Downy Woodpecker, and Small Nut Hatch. Most were at our bird feeders and nut feeders. The goose and mallards were on our second lot (our meadow) behind our house. The spring rains form several small, shallow ponds that dry up by June. And our meadow borders a Natural Habitat Area.