You can barely make them out here, but we have some bees living in a giant hackberry tree down the street from us.  J and I periodically like to walk by it to observe their activity, and I would say that today is the most active I've seen them in months.  Apparently I'm not the only one who has emerged from their slothfulness with this 20 degree drop.  It's glorious!  And it's also encouraging to see these pollinators making their way in our paved, urban environment.  Kudos, sweet things!