At my in-laws’ house where we are staying this week, there is a hummingbird feeder just outside of the window over the kitchen sink. Each morning as I am grinding my coffee, I watch the hummingbirds come and go.
I am always amazed at what territorial jerks hummingbirds are.
If a hummingbird is at the feeder, it runs off literally anything else that comes near—other hummingbirds, other birds (all shapes and sizes), I even just watched one chase off a fly that came buzzing around.
I am unable to see any meaningful differences between the hummingbirds, so it is hard to tell if there is any sort of pecking order. I imagine there probably is?