During migration, the feeders can get very crowded. Sometimes the hummingbirds wait their turn, hovering behind the feeder until a port opens up. On occasion, they share ports side by side. Sometimes they attack each other from behind or from the side. It appears very stressful for the birds.
This Hummingbird Can’t Wait
This hummingbird doesn’t hit the hummingbird on the perch from behind. The perched hummingbird does not flush off. But the hovering hummingbird can’t wait. It balances on the head of the perched bird and reaches over to feed.