I feel your pain on the bumblebee. We finally have honeybees in our yard after several lean years where there was little pollination. This year we had thousands. Each was a welcome visitor, producing a bumper crop of tomatoes, lettuce seed for winter planting, eggplant, and more.
I like to watch the garden from my bedroom window. I watched a fence lizard stalk and EAT one of my little Beaus (I call all of the bees 'Beau'). The hives belong to my neighbor.
We have dozens of fence lizards in our garden and I love them very much. It kind of stung seeing that one bee get lunched.
A few weeks later, I found the body of a lizard in the driveway. The peahen, Corona, killed it and ate the tail. *more sadness*
We love all our critters.
The Muskovy fowl have not been seen eating too many flies yet but they do attack puddles with gnats on the surface like competition eaters. And they kill and eat hornets! When the hornets come to drink water at their kiddie pool, the Muskovies chomp on them.
Lovely vision. Those are some critters I respect but don't love and I don't mourn their death.