Snowfall is bringing in the birds

We have about a foot of snow now

The snow is covered with birch seeds

I posted a month or so ago that there were hardly any birds at our feeders. Now they are showing up, seemingly because of the accumulating snow. There still aren't as many as normal at the feeders but we are seeing usual numbers in the bush. To date I have seen flocks of goldfinches, redpolls, purple finches, juncos and pine siskins. All of these small finches are feeding on an abundance of wild birch catkins. The snow is literally covered with birch seeds after every wind.
A few of these birds are also coming to the feeders, joining blue jays, Canada jays (whiskyjacks), chickadees and hairy woodpeckers. I have also seen a few redbreasted nuthatches in the bush but not at the feeders.