I added a seed feeder to our backyard and the hummingbirds were disturbed, especially by the House Sparrows.
I converted the BirdBuddy from seed with an after-marker nectar. The first visitor was a bit confused ...
It took a few weeks for the hummingbirds to return. There is still a territorial male but from time to time the BirdBuddy AI recognizes a member of the Hummingbird family:
BirdBuddy's Hummingbird feeder may be a year away and the AI needs more training. Even Merlin Bird ID missed this