We thought they were mating at first, but this Male Hummingbird bird was on this female's back for 10 minutes before we realized this was a bad thing happening. We went out to intervene, and the female laid there for a good 5 minutes before being able to fly away. The bully male resumed running off all hummingbirds the rest of the day until dusk. What is interesting is just a few days ago there were like 10 hummingbirds between the two feeders all cooperating. Now it's only one for both feeders. The 1 minute video is too large to load and it's hard to rewatch knowing in hindsight what was happening.