What are some of the amazing aspects of the monarchs annual migration? (site 1)​

Some other amazing aspects are: monarchs only flight during the day so they need to find congregation sites to spend the night close to each other; when monarchs are going to cross open water distance they wait until a gentle breeze help them to start flying; and that it takes 3 to 4 generations of monarchs to reach the northern United States and Canada reigions.

answer; strength of association;