You love watching these tiny jewel-toned wonders zip around your garden all season long. But as the number of daylight hours wanes, it’s likely you’ll see fewer hummingbirds in your back yard.

Hummingbirds generally evoke thoughts of warm weather and summer. Mostly, that would be correct, but the times, they are a-changin’. Of the 16 hummingbird species that nest in the U.S., only one ...