A few days ago I flushed this couple from a large Asclepias tuberosa (orange flowers and often called Butterfly Weed). He flew them up into a pine tree, she hanging beneath and still attached. Later on in the day and several times since, I've seen males patrolling our whole property, flying like mad everywhere and giving special attention to any bright color, especially the orange flags I have out to mark places related to construction and landscaping.
This is the first monarch butterfly larva I've seen this spring. It's tiny, hardly big enough to be seen with the naked eye. The tell-tale evidence is the white chewed sections of milkweed leaves. A half dozen plants have larvae so far. I haven't seen eggs... have hardly looked for them.