Genus

Cowbirds

Molothrus

5 species in our catalog · found in 128 parks

Species in this group

Each card shows the species at its best park — tap for the full profile

Molothrus ater

60–70% · Likely

Molothrus oryzivorus

40–50% · Likely

Molothrus bonariensis

40–50% · Likely

Molothrus aeneus

20–30% · Possible

Molothrus rufoaxillaris

10–20% · With luck

📅 Monthly Probability

Probability-weighted average across the group's species

10–20

Jan

10–20

Feb

10–20

Mar

10–20

Apr

20–30

May

20–30

Jun

10–20

Jul

10–20

Aug

10–20

Sep

10–20

Oct

10–20

Nov

10–20

Dec

🕐 When They're Spotted

When the group's species are recorded (aggregated)

Where to see Cowbirds

Worldwide records of this group (human observations from 2019 onwards, GBIF). Pins mark our parks — tap one for the chance of seeing at least one species of the group there.

Parks Ranked

Chance of seeing at least one species of the group · number of its species present

#	Park	Country	Species	P(≥1)
1	Point Pelee National Park	🇨🇦 Canada	1	60–70%
	Brown-headed Cowbird			60–70%
2	Main Ridge Forest Reserve	🇹🇹 Trinidad and Tobago	2	50–60%
	Giant Cowbird			40–50%
	Shiny Cowbird			20–30%
3	Iberá National Park	🇦🇷 Argentina	3	50–60%
	Shiny Cowbird			40–50%
	Screaming Cowbird			10–20%
	Giant Cowbird			Insufficient data
4	Farallones de Cali National Natural Park	🇨🇴 Colombia	2	40–50%
	Shiny Cowbird			40–50%
	Giant Cowbird			<5%
5	Badlands National Park	🇺🇸 United States	1	30–40%
	Brown-headed Cowbird			30–40%
6	Chapada dos Guimarães National Park	🇧🇷 Brazil	3	30–40%
	Shiny Cowbird			30–40%
	Giant Cowbird			0–10%
	Screaming Cowbird			<5%
7	Noel Kempff Mercado National Park	🇧🇴 Bolivia	2	30–40%
	Giant Cowbird			20–30%
	Shiny Cowbird			10–20%
8	Itatiaia National Park	🇧🇷 Brazil	2	30–40%
	Shiny Cowbird			30–40%
	Giant Cowbird			<5%
9	El Palmar National Park	🇦🇷 Argentina	2	30–40%
	Shiny Cowbird			20–30%
	Screaming Cowbird			0–10%
10	Serra da Canastra National Park	🇧🇷 Brazil	3	30–40%
	Shiny Cowbird			20–30%
	Giant Cowbird			0–10%
	Screaming Cowbird			<5%
11	Tayrona National Natural Park	🇨🇴 Colombia	2	30–40%
	Shiny Cowbird			20–30%
	Giant Cowbird			<5%
12	Piedras Blancas National Park	🇨🇷 Costa Rica	3	20–30%
	Bronzed Cowbird			20–30%
	Shiny Cowbird			0–10%
	Giant Cowbird			<5%
13	Darién National Park	🇵🇦 Panama	3	20–30%
	Shiny Cowbird			10–20%
	Giant Cowbird			10–20%
	Bronzed Cowbird			<5%
14	San Lorenzo Protected Forest	🇵🇦 Panama	3	20–30%
	Shiny Cowbird			10–20%
	Giant Cowbird			10–20%
	Bronzed Cowbird			Insufficient data
15	Elk Island National Park	🇨🇦 Canada	1	20–30%
	Brown-headed Cowbird			20–30%
16	Yellowstone National Park	🇺🇸 United States	1	20–30%
	Brown-headed Cowbird			20–30%
17	Iguazú National Park	🇦🇷 Argentina	3	20–30%
	Shiny Cowbird			10–20%
	Giant Cowbird			10–20%
	Screaming Cowbird			<5%
18	Iguaçu National Park	🇧🇷 Brazil	3	20–30%
	Shiny Cowbird			10–20%
	Giant Cowbird			10–20%
	Screaming Cowbird			<5%
19	Cuyabeno Wildlife Reserve	🇪🇨 Ecuador	2	20–30%
	Giant Cowbird			10–20%
	Shiny Cowbird			0–10%
20	Grand Teton National Park	🇺🇸 United States	1	20–30%
	Brown-headed Cowbird			20–30%
21	Big Bend National Park	🇺🇸 United States	2	20–30%
	Brown-headed Cowbird			20–30%
	Bronzed Cowbird			<5%
22	Yasuní National Park	🇪🇨 Ecuador	2	20–30%
	Giant Cowbird			10–20%
	Shiny Cowbird			0–10%
23	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	1	20–30%
	Bronzed Cowbird			20–30%
24	Amboró National Park	🇧🇴 Bolivia	3	20–30%
	Shiny Cowbird			10–20%
	Giant Cowbird			<5%
	Screaming Cowbird			Insufficient data
25	Shenandoah National Park	🇺🇸 United States	1	20–30%
	Brown-headed Cowbird			20–30%
26	Everglades National Park	🇺🇸 United States	3	20–30%
	Brown-headed Cowbird			10–20%
	Shiny Cowbird			0–10%
	Bronzed Cowbird			<5%
27	El Impenetrable National Park	🇦🇷 Argentina	2	20–30%
	Shiny Cowbird			10–20%
	Screaming Cowbird			<5%
28	Yosemite National Park	🇺🇸 United States	1	20–30%
	Brown-headed Cowbird			20–30%
29	Celaque National Park	🇭🇳 Honduras	2	10–20%
	Giant Cowbird			Insufficient data
	Bronzed Cowbird			10–20%
30	Machalilla National Park	🇪🇨 Ecuador	2	10–20%
	Shiny Cowbird			10–20%
	Giant Cowbird			<5%
31	Emas National Park	🇧🇷 Brazil	2	10–20%
	Shiny Cowbird			10–20%
	Screaming Cowbird			<5%
32	Anavilhanas National Park	🇧🇷 Brazil	2	10–20%
	Shiny Cowbird			10–20%
	Giant Cowbird			<5%
33	Manuel Antonio National Park	🇨🇷 Costa Rica	3	10–20%
	Bronzed Cowbird			10–20%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
34	Banff National Park	🇨🇦 Canada	1	10–20%
	Brown-headed Cowbird			10–20%
35	Cañón del Sumidero National Park	🇲🇽 Mexico	2	10–20%
	Bronzed Cowbird			10–20%
	Giant Cowbird			Insufficient data
36	Jasper National Park	🇨🇦 Canada	1	10–20%
	Brown-headed Cowbird			10–20%
37	Riding Mountain National Park	🇨🇦 Canada	1	10–20%
	Brown-headed Cowbird			10–20%
38	La Amistad International Park (Panama)	🇵🇦 Panama	3	10–20%
	Bronzed Cowbird			0–10%
	Giant Cowbird			0–10%
	Shiny Cowbird			<5%
39	Lago de Yojoa	🇭🇳 Honduras	2	10–20%
	Bronzed Cowbird			10–20%
	Giant Cowbird			0–10%
40	Serra dos Órgãos National Park	🇧🇷 Brazil	1	10–20%
	Shiny Cowbird			10–20%
41	Great Smoky Mountains National Park	🇺🇸 United States	1	10–20%
	Brown-headed Cowbird			10–20%
42	Cumbres de Monterrey National Park	🇲🇽 Mexico	2	10–20%
	Bronzed Cowbird			10–20%
	Brown-headed Cowbird			<5%
43	Pacific Rim National Park Reserve	🇨🇦 Canada	1	10–20%
	Brown-headed Cowbird			10–20%
44	Celestún Biosphere Reserve	🇲🇽 Mexico	2	10–20%
	Bronzed Cowbird			10–20%
	Brown-headed Cowbird			<5%
45	Sequoia and Kings Canyon National Parks	🇺🇸 United States	1	10–20%
	Brown-headed Cowbird			10–20%
46	Madidi National Park	🇧🇴 Bolivia	2	10–20%
	Giant Cowbird			10–20%
	Shiny Cowbird			<5%
47	Cordillera Azul National Park	🇵🇪 Peru	2	10–20%
	Giant Cowbird			0–10%
	Shiny Cowbird			0–10%
48	Volcán Barú National Park	🇵🇦 Panama	2	10–20%
	Bronzed Cowbird			10–20%
	Shiny Cowbird			<5%
49	Tambopata National Reserve	🇵🇪 Peru	2	10–20%
	Giant Cowbird			10–20%
	Shiny Cowbird			<5%
50	Soberanía National Park	🇵🇦 Panama	3	10–20%
	Shiny Cowbird			0–10%
	Giant Cowbird			<5%
	Bronzed Cowbird			<5%
51	Channel Islands National Park	🇺🇸 United States	1	10–20%
	Brown-headed Cowbird			10–20%
52	Parque Estadual Encontro das Águas	🇧🇷 Brazil	3	10–20%
	Giant Cowbird			10–20%
	Shiny Cowbird			<5%
	Screaming Cowbird			Insufficient data
53	Death Valley National Park	🇺🇸 United States	1	10–20%
	Brown-headed Cowbird			10–20%
54	La Tigra National Park	🇭🇳 Honduras	1	10–20%
	Bronzed Cowbird			Insufficient data
55	Cockscomb Basin Wildlife Sanctuary	🇧🇿 Belize	2	10–20%
	Bronzed Cowbird			10–20%
	Giant Cowbird			<5%
56	Península Valdés	🇦🇷 Argentina	1	10–20%
	Shiny Cowbird			10–20%
57	Chapada Diamantina National Park	🇧🇷 Brazil	1	10–20%
	Shiny Cowbird			10–20%
58	Sierra de la Macarena National Park	🇨🇴 Colombia	2	10–20%
	Giant Cowbird			0–10%
	Shiny Cowbird			0–10%
59	Glacier National Park	🇺🇸 United States	1	10–20%
	Brown-headed Cowbird			10–20%
60	Ciénaga de Zapata	🇨🇺 Cuba	1	10–20%
	Shiny Cowbird			10–20%
61	Puracé National Natural Park	🇨🇴 Colombia	2	10–20%
	Shiny Cowbird			0–10%
	Giant Cowbird			<5%
62	Congaree National Park	🇺🇸 United States	1	10–20%
	Brown-headed Cowbird			10–20%
63	Pico Bonito National Park	🇭🇳 Honduras	2	10–20%
	Giant Cowbird			0–10%
	Bronzed Cowbird			<5%
64	Rocky Mountain National Park	🇺🇸 United States	1	10–20%
	Brown-headed Cowbird			10–20%
65	Blue and John Crow Mountains National Park	🇯🇲 Jamaica	1	10–20%
	Shiny Cowbird			10–20%
66	Paracas National Reserve	🇵🇪 Peru	1	10–20%
	Shiny Cowbird			10–20%
67	Grand Canyon National Park	🇺🇸 United States	1	0–10%
	Brown-headed Cowbird			0–10%
68	Redwood National Park	🇺🇸 United States	1	0–10%
	Brown-headed Cowbird			0–10%
69	Caroni Swamp	🇹🇹 Trinidad and Tobago	2	0–10%
	Shiny Cowbird			0–10%
	Giant Cowbird			<5%
70	Amacayacu National Natural Park	🇨🇴 Colombia	2	0–10%
	Giant Cowbird			0–10%
	Shiny Cowbird			<5%
71	Arenal Volcano National Park	🇨🇷 Costa Rica	3	0–10%
	Bronzed Cowbird			0–10%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
72	Calakmul Biosphere Reserve	🇲🇽 Mexico	1	0–10%
	Bronzed Cowbird			0–10%
73	Braulio Carrillo National Park	🇨🇷 Costa Rica	3	0–10%
	Bronzed Cowbird			<5%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
74	Manu National Park	🇵🇪 Peru	2	0–10%
	Giant Cowbird			0–10%
	Shiny Cowbird			<5%
75	Guadalupe Mountains National Park	🇺🇸 United States	1	0–10%
	Brown-headed Cowbird			0–10%
76	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	3	0–10%
	Giant Cowbird			<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
77	Zion National Park	🇺🇸 United States	1	0–10%
	Brown-headed Cowbird			0–10%
78	Bastimentos Island National Marine Park	🇵🇦 Panama	3	0–10%
	Giant Cowbird			0–10%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
79	Los Nevados National Natural Park	🇨🇴 Colombia	2	0–10%
	Shiny Cowbird			0–10%
	Giant Cowbird			<5%
80	Cusuco National Park	🇭🇳 Honduras	2	0–10%
	Giant Cowbird			0–10%
	Bronzed Cowbird			<5%
81	Henri Pittier National Park	🇻🇪 Venezuela	2	0–10%
	Shiny Cowbird			0–10%
	Giant Cowbird			<5%
82	Cerro Azul Meámbar National Park	🇭🇳 Honduras	2	0–10%
	Bronzed Cowbird			<5%
	Giant Cowbird			<5%
83	Ría Lagartos Biosphere Reserve	🇲🇽 Mexico	1	0–10%
	Bronzed Cowbird			0–10%
84	Olympic National Park	🇺🇸 United States	1	0–10%
	Brown-headed Cowbird			0–10%
85	Tenorio Volcano National Park	🇨🇷 Costa Rica	3	0–10%
	Bronzed Cowbird			0–10%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
86	Montes Azules Biosphere Reserve	🇲🇽 Mexico	2	0–10%
	Bronzed Cowbird			0–10%
	Giant Cowbird			<5%
87	Marino Ballena National Park	🇨🇷 Costa Rica	3	0–10%
	Bronzed Cowbird			0–10%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
88	Kluane National Park	🇨🇦 Canada	1	0–10%
	Brown-headed Cowbird			Insufficient data
89	Joshua Tree National Park	🇺🇸 United States	2	0–10%
	Brown-headed Cowbird			<5%
	Bronzed Cowbird			Insufficient data
90	El Vizcaíno Biosphere Reserve	🇲🇽 Mexico	1	0–10%
	Brown-headed Cowbird			0–10%
91	Chirripó National Park	🇨🇷 Costa Rica	3	0–10%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
92	Los Haitises National Park	🇩🇴 Dominican Republic	1	0–10%
	Shiny Cowbird			0–10%
93	Arrecifes de Cozumel National Park	🇲🇽 Mexico	1	0–10%
	Bronzed Cowbird			0–10%
94	Corcovado National Park	🇨🇷 Costa Rica	3	0–10%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
95	Nahuel Huapi National Park	🇦🇷 Argentina	1	0–10%
	Shiny Cowbird			0–10%
96	Great Bear Rainforest	🇨🇦 Canada	1	0–10%
	Brown-headed Cowbird			0–10%
97	Cape Breton Highlands National Park	🇨🇦 Canada	1	0–10%
	Brown-headed Cowbird			Insufficient data
98	Tortuguero National Park	🇨🇷 Costa Rica	3	0–10%
	Giant Cowbird			<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
99	Big Cypress National Preserve	🇺🇸 United States	3	0–10%
	Brown-headed Cowbird			<5%
	Shiny Cowbird			<5%
	Bronzed Cowbird			<5%
100	Chagres National Park	🇵🇦 Panama	2	0–10%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
101	Masaya Volcano National Park	🇳🇮 Nicaragua	1	<5%
	Bronzed Cowbird			<5%
102	Monteverde Cloud Forest Reserve	🇨🇷 Costa Rica	3	<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
103	Bahía de Loreto National Park	🇲🇽 Mexico	1	<5%
	Brown-headed Cowbird			<5%
104	Podocarpus National Park	🇪🇨 Ecuador	2	<5%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
105	Tapantí-Macizo de la Muerte National Park	🇨🇷 Costa Rica	3	<5%
	Bronzed Cowbird			<5%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
106	Poás Volcano National Park	🇨🇷 Costa Rica	1	<5%
	Bronzed Cowbird			<5%
107	Tijuca National Park	🇧🇷 Brazil	2	<5%
	Shiny Cowbird			<5%
	Giant Cowbird			Insufficient data
108	Irazú Volcano National Park	🇨🇷 Costa Rica	1	<5%
	Bronzed Cowbird			<5%
109	Utría National Natural Park	🇨🇴 Colombia	1	<5%
	Giant Cowbird			Insufficient data
110	Cabo Blanco Absolute Nature Reserve	🇨🇷 Costa Rica	2	<5%
	Shiny Cowbird			<5%
	Bronzed Cowbird			<5%
111	Reserva de la Biosfera Mariposa Monarca	🇲🇽 Mexico	2	<5%
	Brown-headed Cowbird			Insufficient data
	Bronzed Cowbird			Insufficient data
112	Chingaza National Natural Park	🇨🇴 Colombia	2	<5%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
113	Palo Verde National Park	🇨🇷 Costa Rica	3	<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			Insufficient data
	Giant Cowbird			Insufficient data
114	Carara National Park	🇨🇷 Costa Rica	3	<5%
	Bronzed Cowbird			<5%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
115	Rincón de la Vieja National Park	🇨🇷 Costa Rica	2	<5%
	Giant Cowbird			<5%
	Bronzed Cowbird			<5%
116	Voyageurs National Park	🇺🇸 United States	1	<5%
	Brown-headed Cowbird			<5%
117	Las Baulas Marine National Park	🇨🇷 Costa Rica	2	<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			Insufficient data
118	Cahuita National Park	🇨🇷 Costa Rica	3	<5%
	Shiny Cowbird			Insufficient data
	Bronzed Cowbird			Insufficient data
	Giant Cowbird			Insufficient data
119	Brownsberg Nature Park	🇸🇷 Suriname	1	<5%
	Giant Cowbird			Insufficient data
120	Acadia National Park	🇺🇸 United States	1	<5%
	Brown-headed Cowbird			<5%
121	Ostional Wildlife Refuge	🇨🇷 Costa Rica	2	<5%
	Bronzed Cowbird			Insufficient data
	Shiny Cowbird			Insufficient data
122	Santa Rosa National Park	🇨🇷 Costa Rica	2	<5%
	Shiny Cowbird			Insufficient data
	Bronzed Cowbird			Insufficient data
123	Parque Natural Metropolitano	🇵🇦 Panama	2	<5%
	Shiny Cowbird			<5%
	Giant Cowbird			Insufficient data
124	Isle Royale National Park	🇺🇸 United States	1	<5%
	Brown-headed Cowbird			Insufficient data
125	Huascarán National Park	🇵🇪 Peru	1	<5%
	Shiny Cowbird			Insufficient data
126	Vicente Pérez Rosales National Park	🇨🇱 Chile	1	<5%
	Shiny Cowbird			Insufficient data
127	Gros Morne National Park	🇨🇦 Canada	1	<5%
	Brown-headed Cowbird			Insufficient data
128	Wrangell-St. Elias National Park	🇺🇸 United States	1	<5%
	Brown-headed Cowbird			Insufficient data

Cowbirds

Species in this group

Brown-headed Cowbird

Giant Cowbird

Shiny Cowbird

Bronzed Cowbird

Screaming Cowbird

📅 Monthly Probability

🕐 When They're Spotted

Where to see Cowbirds

Parks Ranked