My Hummingbird Visitor

You read that right, there's a hummingbird that stays all day in the feeder. He just sits there, guarding the feeder from other hummingbirds. Whenever another hummingbird stops by and starts feeding, he will scare them away. The feeder is hanging in front of my kitchen window so I always see it whenever I'm near the sink. The bird is always there. He either sits on the feeder or sits on the metal feeder hanger. I don't buy the commercial hummingbird nectar, I make my own and obviously the birds like it. At first, dh bought the red nectar from the store but the birds don't seem to like it. When I used my own concoction, the hummingbirds started hanging out in the feeder. If this particular bird keeps on staying in the feeder and drinking every couple of minutes, he'll probably need some diet pill to fly.