This is my first year of involvement with Monarchs. I've raised and released about 30 monarchs so far. I started marking them about 20 butterflies ago.
I have only observed male monarchs returning to my Milkweed patch after more than two days. I observed one male 7 days after release. The observation that started this thread really surprised me, i was glad to see one of my releases had been in the wild for 30 plus days!
Of course i'm learning as i go. I now know i have to take better notes and come up with a better marking scheme. This way i can qualify my observations better and be able to give a more coherent report.
Yes, I will be tagging reared monarchs and any wild monarchs I can. I wasn't sure how important it was to tag monarchs here in Florida, since they really don't seem to migrate.
We are lucky in that they seem to be a mostly year round resident, and we don't have to wait months to spot them in our back yards! We are lucky in that respect.