Genus

Cowbirds

Molothrus

5 species in our catalog · found in 133 parks

KingdomAnimalia (Animals)
PhylumChordata (Chordates)
ClassAves (Birds)
OrderPasseriformes (Perching Birds)
FamilyIcteridae (New World Blackbirds and Orioles)
GenusMolothrus (Cowbirds)

Species in this group

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

Molothrus ater

Daily sighting probability ~60% · Likely

Molothrus oryzivorus

Daily sighting probability ~40% · Likely

Molothrus bonariensis

Daily sighting probability ~40% · Likely

Molothrus aeneus

Daily sighting probability ~20% · Possible

Molothrus rufoaxillaris

Daily sighting probability ~10% · With luck

Daily sighting probability by month

Probability-weighted average across the group's species

~10%

Jan

~10%

Feb

~10%

Mar

~20%

Apr

~20%

May

~20%

Jun

~20%

Jul

~10%

Aug

~10%

Sep

~10%

Oct

~10%

Nov

~10%

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	Daily sighting probability
1	Point Pelee National Park	🇨🇦 Canada	1	~60%
	Brown-headed Cowbird			~60%
2	Main Ridge Forest Reserve	🇹🇹 Trinidad and Tobago	2	~60%
	Giant Cowbird			~50%
	Shiny Cowbird			~20%
3	Iberá National Park	🇦🇷 Argentina	3	~50%
	Shiny Cowbird			~40%
	Screaming Cowbird			~10%
	Giant Cowbird			Insufficient data
4	Farallones de Cali National Natural Park	🇨🇴 Colombia	2	~40%
	Shiny Cowbird			~40%
	Giant Cowbird			<5%
5	Badlands National Park	🇺🇸 United States	1	~40%
	Brown-headed Cowbird			~40%
6	Chapada dos Guimarães National Park	🇧🇷 Brazil	3	~40%
	Shiny Cowbird			~30%
	Giant Cowbird			~10%
	Screaming Cowbird			<5%
7	Noel Kempff Mercado National Park	🇧🇴 Bolivia	2	~40%
	Giant Cowbird			~20%
	Shiny Cowbird			~20%
8	Itatiaia National Park	🇧🇷 Brazil	2	~30%
	Shiny Cowbird			~30%
	Giant Cowbird			<5%
9	El Palmar National Park	🇦🇷 Argentina	2	~30%
	Shiny Cowbird			~30%
	Screaming Cowbird			~10%
10	Serra da Canastra National Park	🇧🇷 Brazil	3	~30%
	Shiny Cowbird			~30%
	Giant Cowbird			~10%
	Screaming Cowbird			<5%
11	Tayrona National Natural Park	🇨🇴 Colombia	2	~30%
	Shiny Cowbird			~30%
	Giant Cowbird			<5%
12	Piedras Blancas National Park	🇨🇷 Costa Rica	3	~30%
	Bronzed Cowbird			~20%
	Shiny Cowbird			~10%
	Giant Cowbird			<5%
13	Darién National Park	🇵🇦 Panama	3	~30%
	Shiny Cowbird			~20%
	Giant Cowbird			~20%
	Bronzed Cowbird			<5%
14	San Lorenzo Protected Forest	🇵🇦 Panama	3	~30%
	Shiny Cowbird			~20%
	Giant Cowbird			~10%
	Bronzed Cowbird			Insufficient data
15	Elk Island National Park	🇨🇦 Canada	1	~30%
	Brown-headed Cowbird			~30%
16	Yellowstone National Park	🇺🇸 United States	1	~30%
	Brown-headed Cowbird			~30%
17	Iguazú National Park	🇦🇷 Argentina	3	~30%
	Shiny Cowbird			~20%
	Giant Cowbird			~10%
	Screaming Cowbird			<5%
18	Iguaçu National Park	🇧🇷 Brazil	3	~30%
	Shiny Cowbird			~10%
	Giant Cowbird			~10%
	Screaming Cowbird			<5%
19	Cuyabeno Wildlife Reserve	🇪🇨 Ecuador	2	~20%
	Giant Cowbird			~20%
	Shiny Cowbird			~10%
20	Grand Teton National Park	🇺🇸 United States	1	~20%
	Brown-headed Cowbird			~20%
21	Big Bend National Park	🇺🇸 United States	2	~20%
	Brown-headed Cowbird			~20%
	Bronzed Cowbird			<5%
22	Yasuní National Park	🇪🇨 Ecuador	2	~20%
	Giant Cowbird			~20%
	Shiny Cowbird			~10%
23	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	1	~20%
	Bronzed Cowbird			~20%
24	Amboró National Park	🇧🇴 Bolivia	3	~20%
	Shiny Cowbird			~20%
	Giant Cowbird			<5%
	Screaming Cowbird			Insufficient data
25	Shenandoah National Park	🇺🇸 United States	1	~20%
	Brown-headed Cowbird			~20%
26	Everglades National Park	🇺🇸 United States	3	~20%
	Brown-headed Cowbird			~10%
	Shiny Cowbird			~10%
	Bronzed Cowbird			<5%
27	El Impenetrable National Park	🇦🇷 Argentina	2	~20%
	Shiny Cowbird			~20%
	Screaming Cowbird			<5%
28	Yosemite National Park	🇺🇸 United States	1	~20%
	Brown-headed Cowbird			~20%
29	Celaque National Park	🇭🇳 Honduras	2	~20%
	Giant Cowbird			Insufficient data
	Bronzed Cowbird			~10%
30	Machalilla National Park	🇪🇨 Ecuador	2	~20%
	Shiny Cowbird			~20%
	Giant Cowbird			<5%
31	Emas National Park	🇧🇷 Brazil	2	~20%
	Shiny Cowbird			~20%
	Screaming Cowbird			<5%
32	Anavilhanas National Park	🇧🇷 Brazil	2	~20%
	Shiny Cowbird			~20%
	Giant Cowbird			<5%
33	Manuel Antonio National Park	🇨🇷 Costa Rica	3	~20%
	Bronzed Cowbird			~10%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
34	Banff National Park	🇨🇦 Canada	1	~20%
	Brown-headed Cowbird			~20%
35	Cañón del Sumidero National Park	🇲🇽 Mexico	2	~20%
	Bronzed Cowbird			~20%
	Giant Cowbird			Insufficient data
36	Jasper National Park	🇨🇦 Canada	1	~20%
	Brown-headed Cowbird			~20%
37	Riding Mountain National Park	🇨🇦 Canada	1	~20%
	Brown-headed Cowbird			~20%
38	La Amistad International Park (Panama)	🇵🇦 Panama	3	~20%
	Bronzed Cowbird			~10%
	Giant Cowbird			~10%
	Shiny Cowbird			<5%
39	Lago de Yojoa	🇭🇳 Honduras	2	~20%
	Bronzed Cowbird			~10%
	Giant Cowbird			~10%
40	Serra dos Órgãos National Park	🇧🇷 Brazil	1	~20%
	Shiny Cowbird			~20%
41	Great Smoky Mountains National Park	🇺🇸 United States	1	~20%
	Brown-headed Cowbird			~20%
42	Pacific Rim National Park Reserve	🇨🇦 Canada	1	~20%
	Brown-headed Cowbird			~20%
43	Celestún Biosphere Reserve	🇲🇽 Mexico	2	~20%
	Bronzed Cowbird			~10%
	Brown-headed Cowbird			<5%
44	Sequoia and Kings Canyon National Parks	🇺🇸 United States	1	~20%
	Brown-headed Cowbird			~20%
45	Madidi National Park	🇧🇴 Bolivia	2	~10%
	Giant Cowbird			~10%
	Shiny Cowbird			<5%
46	Cordillera Azul National Park	🇵🇪 Peru	2	~10%
	Giant Cowbird			~10%
	Shiny Cowbird			~10%
47	Volcán Barú National Park	🇵🇦 Panama	2	~10%
	Bronzed Cowbird			~10%
	Shiny Cowbird			<5%
48	Tambopata National Reserve	🇵🇪 Peru	2	~10%
	Giant Cowbird			~10%
	Shiny Cowbird			<5%
49	Soberanía National Park	🇵🇦 Panama	3	~10%
	Shiny Cowbird			~10%
	Giant Cowbird			<5%
	Bronzed Cowbird			<5%
50	Channel Islands National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
51	Parque Estadual Encontro das Águas	🇧🇷 Brazil	3	~10%
	Giant Cowbird			~10%
	Shiny Cowbird			<5%
	Screaming Cowbird			Insufficient data
52	Death Valley National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
53	La Tigra National Park	🇭🇳 Honduras	1	~10%
	Bronzed Cowbird			Insufficient data
54	Saguaro National Park	🇺🇸 United States	2	~10%
	Brown-headed Cowbird			~10%
	Bronzed Cowbird			<5%
55	Cockscomb Basin Wildlife Sanctuary	🇧🇿 Belize	2	~10%
	Bronzed Cowbird			~10%
	Giant Cowbird			<5%
56	Península Valdés	🇦🇷 Argentina	1	~10%
	Shiny Cowbird			~10%
57	Chapada Diamantina National Park	🇧🇷 Brazil	1	~10%
	Shiny Cowbird			~10%
58	Sierra de la Macarena National Park	🇨🇴 Colombia	2	~10%
	Giant Cowbird			~10%
	Shiny Cowbird			~10%
59	Glacier National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
60	Ciénaga de Zapata	🇨🇺 Cuba	1	~10%
	Shiny Cowbird			~10%
61	Puracé National Natural Park	🇨🇴 Colombia	2	~10%
	Shiny Cowbird			~10%
	Giant Cowbird			<5%
62	Congaree National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
63	Pico Bonito National Park	🇭🇳 Honduras	2	~10%
	Giant Cowbird			~10%
	Bronzed Cowbird			<5%
64	Rocky Mountain National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
65	Blue and John Crow Mountains National Park	🇯🇲 Jamaica	1	~10%
	Shiny Cowbird			~10%
66	Paracas National Reserve	🇵🇪 Peru	1	~10%
	Shiny Cowbird			~10%
67	Grand Canyon National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
68	Redwood National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
69	Caroni Swamp	🇹🇹 Trinidad and Tobago	2	~10%
	Shiny Cowbird			~10%
	Giant Cowbird			<5%
70	Amacayacu National Natural Park	🇨🇴 Colombia	2	~10%
	Giant Cowbird			~10%
	Shiny Cowbird			<5%
71	Arenal Volcano National Park	🇨🇷 Costa Rica	3	~10%
	Bronzed Cowbird			~10%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
72	Calakmul Biosphere Reserve	🇲🇽 Mexico	1	~10%
	Bronzed Cowbird			~10%
73	Braulio Carrillo National Park	🇨🇷 Costa Rica	3	~10%
	Bronzed Cowbird			<5%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
74	Manu National Park	🇵🇪 Peru	2	~10%
	Giant Cowbird			~10%
	Shiny Cowbird			<5%
75	Guadalupe Mountains National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
76	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	3	~10%
	Giant Cowbird			<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
77	Zion National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
78	Bastimentos Island National Marine Park	🇵🇦 Panama	3	~10%
	Giant Cowbird			~10%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
79	Los Nevados National Natural Park	🇨🇴 Colombia	2	~10%
	Shiny Cowbird			~10%
	Giant Cowbird			<5%
80	Cusuco National Park	🇭🇳 Honduras	2	~10%
	Giant Cowbird			~10%
	Bronzed Cowbird			<5%
81	Henri Pittier National Park	🇻🇪 Venezuela	2	~10%
	Shiny Cowbird			~10%
	Giant Cowbird			<5%
82	Cerro Azul Meámbar National Park	🇭🇳 Honduras	2	~10%
	Bronzed Cowbird			<5%
	Giant Cowbird			<5%
83	Ría Lagartos Biosphere Reserve	🇲🇽 Mexico	1	~10%
	Bronzed Cowbird			~10%
84	Olympic National Park	🇺🇸 United States	1	~10%
	Brown-headed Cowbird			~10%
85	Tenorio Volcano National Park	🇨🇷 Costa Rica	3	~10%
	Bronzed Cowbird			~10%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
86	Los Quetzales National Park	🇨🇷 Costa Rica	3	~10%
	Giant Cowbird			Insufficient data
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
87	Montes Azules Biosphere Reserve	🇲🇽 Mexico	2	~10%
	Bronzed Cowbird			~10%
	Giant Cowbird			<5%
88	Marino Ballena National Park	🇨🇷 Costa Rica	3	~10%
	Bronzed Cowbird			~10%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
89	Kluane National Park	🇨🇦 Canada	1	~10%
	Brown-headed Cowbird			Insufficient data
90	Joshua Tree National Park	🇺🇸 United States	2	~10%
	Brown-headed Cowbird			<5%
	Bronzed Cowbird			Insufficient data
91	El Vizcaíno Biosphere Reserve	🇲🇽 Mexico	1	~10%
	Brown-headed Cowbird			~10%
92	Tikal National Park	🇬🇹 Guatemala	2	~10%
	Giant Cowbird			~10%
	Bronzed Cowbird			<5%
93	Cabo Pulmo National Park	🇲🇽 Mexico	1	~10%
	Brown-headed Cowbird			~10%
94	Chirripó National Park	🇨🇷 Costa Rica	3	~10%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
95	Los Haitises National Park	🇩🇴 Dominican Republic	1	~10%
	Shiny Cowbird			~10%
96	Arrecifes de Cozumel National Park	🇲🇽 Mexico	1	~10%
	Bronzed Cowbird			~10%
97	El Triunfo	🇲🇽 Mexico	1	~10%
	Bronzed Cowbird			~10%
98	Corcovado National Park	🇨🇷 Costa Rica	3	~10%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
99	Nahuel Huapi National Park	🇦🇷 Argentina	1	~10%
	Shiny Cowbird			~10%
100	Great Bear Rainforest	🇨🇦 Canada	1	~10%
	Brown-headed Cowbird			~10%
101	Cape Breton Highlands National Park	🇨🇦 Canada	1	~10%
	Brown-headed Cowbird			Insufficient data
102	Tortuguero National Park	🇨🇷 Costa Rica	3	~10%
	Giant Cowbird			<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
103	Big Cypress National Preserve	🇺🇸 United States	3	~10%
	Brown-headed Cowbird			<5%
	Shiny Cowbird			<5%
	Bronzed Cowbird			<5%
104	Chagres National Park	🇵🇦 Panama	2	~10%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
105	Jaragua National Park	🇩🇴 Dominican Republic	1	<5%
	Shiny Cowbird			<5%
106	Masaya Volcano National Park	🇳🇮 Nicaragua	1	<5%
	Bronzed Cowbird			<5%
107	Monteverde Cloud Forest Reserve	🇨🇷 Costa Rica	3	<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
108	Bahía de Loreto National Park	🇲🇽 Mexico	1	<5%
	Brown-headed Cowbird			<5%
109	Podocarpus National Park	🇪🇨 Ecuador	2	<5%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
110	Tapantí-Macizo de la Muerte National Park	🇨🇷 Costa Rica	3	<5%
	Bronzed Cowbird			<5%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
111	Poás Volcano National Park	🇨🇷 Costa Rica	1	<5%
	Bronzed Cowbird			<5%
112	Tijuca National Park	🇧🇷 Brazil	2	<5%
	Shiny Cowbird			<5%
	Giant Cowbird			Insufficient data
113	Irazú Volcano National Park	🇨🇷 Costa Rica	1	<5%
	Bronzed Cowbird			<5%
114	Utría National Natural Park	🇨🇴 Colombia	1	<5%
	Giant Cowbird			Insufficient data
115	Cabo Blanco Absolute Nature Reserve	🇨🇷 Costa Rica	2	<5%
	Shiny Cowbird			<5%
	Bronzed Cowbird			<5%
116	Reserva de la Biosfera Mariposa Monarca	🇲🇽 Mexico	2	<5%
	Brown-headed Cowbird			Insufficient data
	Bronzed Cowbird			Insufficient data
117	Chingaza National Natural Park	🇨🇴 Colombia	2	<5%
	Shiny Cowbird			<5%
	Giant Cowbird			<5%
118	Palo Verde National Park	🇨🇷 Costa Rica	3	<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			Insufficient data
	Giant Cowbird			Insufficient data
119	Carara National Park	🇨🇷 Costa Rica	3	<5%
	Bronzed Cowbird			<5%
	Giant Cowbird			<5%
	Shiny Cowbird			<5%
120	Rincón de la Vieja National Park	🇨🇷 Costa Rica	2	<5%
	Giant Cowbird			<5%
	Bronzed Cowbird			<5%
121	Voyageurs National Park	🇺🇸 United States	1	<5%
	Brown-headed Cowbird			<5%
122	Las Baulas Marine National Park	🇨🇷 Costa Rica	2	<5%
	Bronzed Cowbird			<5%
	Shiny Cowbird			Insufficient data
123	Cahuita National Park	🇨🇷 Costa Rica	3	<5%
	Shiny Cowbird			Insufficient data
	Bronzed Cowbird			Insufficient data
	Giant Cowbird			Insufficient data
124	Brownsberg Nature Park	🇸🇷 Suriname	1	<5%
	Giant Cowbird			Insufficient data
125	Acadia National Park	🇺🇸 United States	1	<5%
	Brown-headed Cowbird			<5%
126	Ostional Wildlife Refuge	🇨🇷 Costa Rica	2	<5%
	Bronzed Cowbird			Insufficient data
	Shiny Cowbird			Insufficient data
127	Santa Rosa National Park	🇨🇷 Costa Rica	2	<5%
	Shiny Cowbird			Insufficient data
	Bronzed Cowbird			Insufficient data
128	Isle Royale National Park	🇺🇸 United States	1	<5%
	Brown-headed Cowbird			Insufficient data
129	Huascarán National Park	🇵🇪 Peru	1	<5%
	Shiny Cowbird			Insufficient data
130	Parque Natural Metropolitano	🇵🇦 Panama	2	<5%
	Shiny Cowbird			Insufficient data
	Giant Cowbird			Insufficient data
131	Vicente Pérez Rosales National Park	🇨🇱 Chile	1	<5%
	Shiny Cowbird			Insufficient data
132	Gros Morne National Park	🇨🇦 Canada	1	<5%
	Brown-headed Cowbird			Insufficient data
133	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

Daily sighting probability by month

When they're spotted

Where to see Cowbirds

Parks Ranked