West · Central Flyway

Brown-headed Cowbird in Colorado

Molothrus ater — Icteridae

CommonAbundance
Summer breederSeasonal status
3Active months
86,153Observations

About Brown-headed Cowbird in Colorado

Brown-headed Cowbird is a North American backyard bird.

In Colorado, this species is classified as common. It visits during the breeding season, typically spring through summer. The best months to observe this bird are May, June, July. Peak activity occurs in May, June.

Monthly Activity — Brown-headed Cowbird in Colorado

Relative frequency of observations by month. Higher bars indicate peak periods for this species.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
RegularSeasonalRare

Identification

FamilyIcteridae
View full Brown-headed Cowbird profile →

Best Time to See Brown-headed Cowbird in Colorado

January
Low
February
Low
March
Low
April
Active
May
Peak
June
Peak
July
Peak
August
Active
September
Low
October
Low
November
Low
December
Low

Other birds in Colorado

Birds you might also encounter in Colorado.

Brown-headed Cowbird in other states

Brown-headed Cowbird in Colorado: Quick Facts

The Brown-headed Cowbird (Molothrus ater) is a common bird in Colorado. It is classified as a summer breeder in the state, falling within the West region and the Central Flyway migration corridor.

The best months to spot this species in Colorado are May, June, July. For birders in Denver and throughout Colorado, knowing the seasonal patterns of Brown-headed Cowbird can help plan birding trips and backyard feeding strategies.

Use the monthly activity chart above to plan your birding outings, and explore other bird species found in Colorado using the related birds section.