Haven't heard anything about them leaving unless there is drought and lack of food they like. Check out the flowers you can plant to keep them coming. I love to watch them.<quoted text>
I've never seen this before. Today I haven't even had a humming bird to the feeder. Would that cause the birds to leave here?
How to Attract Hummingbirds to Your Yard
Kentucky-- Ruby-throats usually arrive in April. They are usually gone after the end of September.... Hummingbirds often leave about the middle of September.
Ruby-throated, Rufous, Green Violet-ear.
Great pictures of Kentucky hummingbirds.