I went outside this evening to get the grill ready to cook burgers on for supper, and there on the concrete apron in front of the garage was a female hummer dead. I suspect that the male was chasing her and she flew into the garage head first.
I hate find dead birds in the garden. We had a goldfinch not long ago lying on the patio. It must have broken its neck when it flew into the glass. I hope your hummingbird died instantly and didn't suffer.