
Based on 2,010 research-grade iNaturalist observations in Colorado, European Starling is most often recorded in April; in Colorado it behaves like a year-round resident. It ranks #47 among birds recorded in the state in our data.
Sturnus vulgaris
European Starling in Colorado by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Colorado in April

Mallard

American Robin
Canada Goose
Red-winged Blackbird
Black-billed Magpie

Red-tailed Hawk

Great Blue Heron
American White Pelican
Places to look in Colorado
White River National Forest
Denver Botanic Gardens
Rio Grande National Forest
National ForestSan Juan National Forest
Roxborough State Park
Mancos State Park
FAQ
When does European Starling appear in Colorado?
Mainly September–June, with the most records in April.
How common is European Starling in Colorado?
It ranks #47 by number of iNaturalist observations among birds in Colorado (2,010 records in our sample).