Brown-headed Cowbird

Brown-headed Cowbird

Molothrus ater

Silhouette: Andy Wilson · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~10% · With luck
at Olympic National Park
3,112 Verified sightings at Olympic National Park From 2019 to 2026
24,900 Verified sightings across all 18 parks From 2019 to 2026
May Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Brown-headed Cowbird

The brown-headed cowbird (Molothrus ater) is a small, obligate brood parasitic icterid native to temperate and subtropical North America. It is a permanent resident in the southern parts of its range; northern birds migrate to the southern United States and Mexico in winter, returning to their summer habitat around March or April.

The brown-headed cowbird was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in 1775 in his Histoire Naturelle des Oiseaux from a specimen collected in the Carolinas. The bird was also illustrated in a hand-colored plate engraved by François-Nicolas Martinet in the Planches Enluminées D'Histoire Naturelle, which was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. Neither the plate caption nor Buffon's description included a scientific name, but in 1783, Dutch naturalist Pieter Boddaert coined the binomial name Oriolus ater in his catalogue of the Planches Enluminées. The brown-headed cowbird is now placed in the genus Molothrus that was introduced by English naturalist William Swainson in 1832 with the brown-headed cowbird as the type species. The genus name combines the Ancient Greek... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Point Pelee National Park 🇨🇦 Canada
~60%
2 Shenandoah National Park 🇺🇸 United States
~20%
3 Yosemite National Park 🇺🇸 United States
~20%
4 Everglades National Park 🇺🇸 United States
~10%
5 Congaree National Park 🇺🇸 United States
~10%
6 Saguaro National Park 🇺🇸 United States
~10%
7 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico
~10%
8 Cabo Pulmo National Park 🇲🇽 Mexico
~10%
9 Joshua Tree National Park 🇺🇸 United States
<5%
10 Bahía de Loreto National Park 🇲🇽 Mexico
<5%
11 Big Cypress National Preserve 🇺🇸 United States
<5%
12 Acadia National Park 🇺🇸 United States
<5%
13 Celestún Biosphere Reserve 🇲🇽 Mexico
<5%
14 Cape Breton Highlands National Park 🇨🇦 Canada
Insufficient data
15 Reserva de la Biosfera Mariposa Monarca 🇲🇽 Mexico
Insufficient data
16 Isle Royale National Park 🇺🇸 United States
Insufficient data
17 Gros Morne National Park 🇨🇦 Canada
Insufficient data
18 Wrangell-St. Elias National Park 🇺🇸 United States
Insufficient data

Quick answers

What are the chances of seeing a Brown-headed Cowbird in Olympic National Park?

About 10% of wildlife watchers report a Brown-headed Cowbird sighting in Olympic National Park, based on 3,112 verified sightings from GBIF citizen-science data.

When is the best time to see Brown-headed Cowbird in Olympic National Park?

May has the highest sighting rate for Brown-headed Cowbird in Olympic National Park in our monthly data.

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