What a great idea to monitor the goings on where you live in Canada.
I'm happy to know that you are down here for 3 months!
I'd really love it if more FL people all over the state were reporting Monarch sightings and if they have cats. I think it would clear up some of the Monarch "mystery" if there was lots of info coming in.
In Florida we have quite a few sub-species of migrating species that are all year round residents and don't fly north in spring...ie the Florida sandhill crane. I'm really wondering if we have something similar with the Monarchs. I beginning to wonder if the winter cold fronts regulate where they are as since they are reproducing they need the milkweed. Who knows...I'm just throwing out ideas.
One day they will figure it out.
I'm located in Plant City. Yes, that is where all the strawberries are grown in Florida in late winter to early spring.