You can help hummingbirds by:  Planting native plants  Providing them shelter, food, and nesting habitat.  Keep your bird feeders clean so they won’t get sick due to mold.  Don’t use pesticides in your garden, or birds will not be likely to visit it. Keep your cat indoors so she can’t scare the hummingbird.  Add a water source in the garden and keep hummingbirds safe from colliding with windows.  These are the things that help hummingbirds.