Doug Tallamy, PLANT NATIVES TO FEED THE BIRDS

[Botany]

If you are troubled about dwindling bird populations and you’d like to help our feathery friends, you need to know a few things like this: It takes more than a bit of bird seed in the winter months. Take chickadees, for example. They don’t eat seeds in the springtime when they are making and raising babies, they eat only caterpillars. So where have all the caterpillars gone?

Snip

North American bird populations have nose-dived for a variety of reasons. A big one, experts tell us, is habitat loss. Suburbia has created a huge negative impact by landscaping around our homes with lovely but unproductive non-native ornamentals such as azalea, privet, crepe myrtle, Japanese maple, boxwood, barberry, forsythia, heavenly bamboo, English ivy, pachysandra … plants that are native to other countries, not ours. People don’t realize that most insects cannot feed on these commonly used alien exotics because they do not have an evolutionary tie to the plants. If the insects can’t feed on your plants then the birds can’t feed on the insects. And it’s these insects that provide the food for our indigenous birds.

THE LANDSCAPE-BIRD POPULATION CONNECTION
Dr. Doug Tallamy, at a speaking engagement in Northern Virginia this past February, put it bluntly, “There are millions of people who put out bird food all winter long and during the summer they starve the birds by the way they landscape because they don’t see the connection.”

https://choosenatives.org/articles/plant-natives-feed-birds/