These are illegal aliens, a population of military aged men, not migrants.
Lucianne comment: The population of Denver has increased by 5 percent due to recent arrival of 40,000 illegal alien invaders.
https://www.foxnews.com/media/....denver-becoming-over

Denver becoming overwhelmed after 40,000 spike in migrant population | Fox News
www.foxnews.com

Denver becoming overwhelmed after 40,000 spike in migrant population | Fox News

Denver has become the latest city to crumble under the weight of the ongoing migrant crisis as they experience a population spike of 40,000 people.