Ruby-crowned Kinglet
Location: 249 California Ave Palo Alto, CA 94306
The Tiny Dynamo of the Treetops: Meet the Featherweight Powerhouse
The Ruby-crowned Kinglet (Regulus calendula) is one of North America's smallest songbirds, but its energy and voice are surprisingly powerful.
Size: 3.5–4.3 inches long.
Look: Tiny olive-green body about the weight of two pennies, white eye ring, dark wings with white markings. Males have a hidden ruby-red crown.
Bay Area Schedule: Winter visitor arriving in autumn and leaving in early spring.
Fascinating Facts
The Secret Ruby Crown: Males normally keep their ruby-red crown feathers hidden and reveal their bright red crown during excitement, territorial displays, or courtship.
The Constant Explorer: These tiny birds rarely stop moving, searching branches and leaves for food.
Winter Survival Experts: On cold nights, they conserve energy by lowering their metabolic rate, helping these tiny birds survive chilly winter weather.
How to Welcome Them: Insect-Friendly Gardens
Ruby-crowned Kinglets eat insects rather than seeds.
Provide native plants that support insects.
Offer suet or mealworms.
Provide shallow moving water.
Avoid pesticides that reduce their food supply.
Plant a Safe Haven
Coast Live Oak (Quercus agrifolia): Supports insects used as winter food.
Toyon (Heteromeles arbutifolia) & Coyote Brush (Baccharis pilularis): Provide shelter and hunting areas.
California Elderberry (Sambucus mexicana): Creates insect-rich branches for foraging.
Look-Alikes: How to Tell Them Apart
Ruby-crowned Kinglet: Bold white eye ring; males may briefly reveal a hidden ruby-red crown.
Golden-crowned Kinglet: Distinct black-and-yellow striped crown; face shows bold black-and-white stripes.