We had fairly frequent activity with 2 - 4 PM's at the gourds up until the cold snap. They were popping in and out, checking out the digs. After the cold front rumbled thru, we saw nothing until 2 days ago when the weather settled down and it warmed up into the low 50's...2 - 4 PM's for a couple of hours in the morning. Then we got blasted with snow, rain, and cold and we haven't seen anything since.
There will notable morality across most of the country from this wide-spread cold and inclement weather. Being this early in the season and up this far north, I expect that we will see more younger PM's moving north to nest. If you are providing housing, you may want to check each unit for dead birds. A dead bird can block in another live one.
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we do have pretty good luck with the tree swallows; better than house sparrows
