Hen Harrier

Circus cyaneus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered

KingdomAnimalia (Animals)
PhylumChordata (Cordats)
ClassAves (Aus)
OrderAccipitriformes
FamilyAccipitridae (Accipítrids)
GenusCircus (Harriers)
SpeciesCircus cyaneus (Hen Harrier)

Insufficient data

overall probability at Las Baulas Marine National Park

1 Verified records at Las Baulas Marine National Park

☀️ Diurnal When it's active during daytime hours (6am–6pm)

The hen harrier (Circus cyaneus) is a bird of prey. It breeds in open areas such as marshes and grasslands in Eurasia and is migratory, moving further south outside of the breeding season. Birds in milder regions, such as France and Great Britain, may be resident year-round, but the higher altitudes are largely deserted in winter. The species is sexually dimorphic; males are smaller and mostly grey and white with black wingtips, whereas females average larger and are predominantly brown and have buff underparts with brown barring. Both sexes have a white rump patch, although it is more noticeable on females and juveniles. The term "hen harrier" refers to its former habit of preying on free-ranging fowl. Wikipedia →

Closest Relatives at Las Baulas Marine National Park

Buteogallus anthracinus

40–50% · Likely

Rupornis magnirostris

10–20% · With luck

Ictinia plumbea

10–20% · With luck

Buteo nitidus

<5% · Rare

Geranospiza caerulescens

<5% · Rare

Buteogallus urubitinga

Buteo platypterus

Elanoides forficatus

Buteo brachyurus

Elanus leucurus

Buteo albonotatus

Ictinia mississippiensis

Insufficient data

See all 12 relatives Show fewer

📅 Monthly Probability

📊

Fewer than 5 records of Hen Harrier at Las Baulas Marine National Park — not enough to chart months honestly.

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

#	Park	Country	Probability
1	Wood Buffalo National Park	🇨🇦 Canada	20–30%
2	Wrangell-St. Elias National Park	🇺🇸 United States	20–30%
3	Katmai National Park	🇺🇸 United States	20–30%
4	Gates of the Arctic National Park	🇺🇸 United States	20–30%
5	Everglades National Park	🇺🇸 United States	10–20%
6	Kiskunság National Park	🇭🇺 Hungary	10–20%
7	Death Valley National Park	🇺🇸 United States	10–20%
8	Hortobágy National Park	🇭🇺 Hungary	10–20%
9	Point Pelee National Park	🇨🇦 Canada	10–20%
10	Kluane National Park	🇨🇦 Canada	10–20%
11	Fertő-Hanság National Park	🇭🇺 Hungary	10–20%
12	Badlands National Park	🇺🇸 United States	10–20%
13	Wadden Sea National Park	🇩🇪 Germany	10–20%
14	El Vizcaíno Biosphere Reserve	🇲🇽 Mexico	10–20%
15	Channel Islands National Park	🇺🇸 United States	10–20%
16	Ciénaga de Zapata	🇨🇺 Cuba	10–20%
17	Grand Teton National Park	🇺🇸 United States	5–10%
18	Yellowstone National Park	🇺🇸 United States	5–10%
19	Tatra National Park	🇸🇰 Slovakia	5–10%
20	Denali National Park	🇺🇸 United States	5–10%
21	Gros Morne National Park	🇨🇦 Canada	5–10%
22	Biebrza National Park	🇵🇱 Poland	5–10%
23	Palo Verde National Park	🇨🇷 Costa Rica	5–10%
24	Big Cypress National Preserve	🇺🇸 United States	5–10%
25	Kaziranga National Park	🇮🇳 India	5–10%
26	Cape Breton Highlands National Park	🇨🇦 Canada	5–10%
27	Doñana National Park	🇪🇸 Spain	5–10%
28	Riding Mountain National Park	🇨🇦 Canada	5–10%
29	Jasper National Park	🇨🇦 Canada	5–10%
30	Redwood National Park	🇺🇸 United States	<5%
31	Olympic National Park	🇺🇸 United States	<5%
32	Glacier National Park	🇺🇸 United States	<5%
33	Elk Island National Park	🇨🇦 Canada	<5%
34	Great Smoky Mountains National Park	🇺🇸 United States	<5%
35	Chitwan National Park	🇳🇵 Nepal	<5%
36	Hemis National Park	🇮🇳 India	<5%
37	Namdapha National Park	🇮🇳 India	<5%
38	Acadia National Park	🇺🇸 United States	<5%
39	Great Bear Rainforest	🇨🇦 Canada	<5%
40	Sequoia and Kings Canyon National Parks	🇺🇸 United States	<5%
41	Jaragua National Park	🇩🇴 Dominican Republic	<5%
42	Banff National Park	🇨🇦 Canada	<5%
43	Guadalupe Mountains National Park	🇺🇸 United States	<5%
44	Isle Royale National Park	🇺🇸 United States	<5%
45	Pyrénées National Park	🇫🇷 France	<5%
46	Ría Lagartos Biosphere Reserve	🇲🇽 Mexico	<5%
47	Białowieża National Park	🇵🇱 Poland	<5%
48	Cévennes National Park	🇫🇷 France	<5%
49	Cumbres de Monterrey National Park	🇲🇽 Mexico	<5%
50	Big Bend National Park	🇺🇸 United States	<5%
51	Grand Canyon National Park	🇺🇸 United States	<5%
52	Langtang National Park	🇳🇵 Nepal	<5%
53	Cairngorms National Park	🇬🇧 United Kingdom	<5%
54	Royal Manas National Park	🇧🇹 Bhutan	<5%
55	Monfragüe National Park	🇪🇸 Spain	<5%
56	Montes Azules Biosphere Reserve	🇲🇽 Mexico	<5%
57	Pacific Rim National Park Reserve	🇨🇦 Canada	<5%
58	Zion National Park	🇺🇸 United States	<5%
59	Shenandoah National Park	🇺🇸 United States	<5%
60	Rocky Mountain National Park	🇺🇸 United States	<5%
61	Jim Corbett National Park	🇮🇳 India	<5%
62	Parque Natural Metropolitano	🇵🇦 Panama	<5%
63	Celestún Biosphere Reserve	🇲🇽 Mexico	<5%
64	Arrecifes de Cozumel National Park	🇲🇽 Mexico	<5%
65	Congaree National Park	🇺🇸 United States	<5%
66	Joshua Tree National Park	🇺🇸 United States	<5%
67	Manuel Antonio National Park	🇨🇷 Costa Rica	<5%
68	Bavarian Forest National Park	🇩🇪 Germany	<5%
69	Snowdonia National Park	🇬🇧 United Kingdom	<5%
70	Sierra de Guadarrama National Park	🇪🇸 Spain	<5%
71	Soberanía National Park	🇵🇦 Panama	<5%
72	La Amistad International Park (Panama)	🇵🇦 Panama	<5%
73	Keoladeo National Park	🇮🇳 India	Insufficient data
74	Nahanni National Park	🇨🇦 Canada	Insufficient data
75	Ranthambore National Park	🇮🇳 India	Insufficient data
76	Mercantour National Park	🇫🇷 France	Insufficient data
77	Bahía de Loreto National Park	🇲🇽 Mexico	Insufficient data
78	Voyageurs National Park	🇺🇸 United States	Insufficient data
79	Nikko National Park	🇯🇵 Japan	Insufficient data
80	Royal Bardia National Park	🇳🇵 Nepal	Insufficient data
81	Reserva de la Biosfera Mariposa Monarca	🇲🇽 Mexico	Insufficient data
82	Khangchendzonga National Park	🇮🇳 India	Insufficient data
83	Gauja National Park	🇱🇻 Latvia	Insufficient data
84	Gobi Gurvansaikhan National Park	🇲🇳 Mongolia	Insufficient data
85	Triglav National Park	🇸🇮 Slovenia	Insufficient data
86	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	Insufficient data
87	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	Insufficient data
88	Aigüestortes National Park	🇪🇸 Spain	Insufficient data
89	Taroko National Park	🇹🇼 Taiwan	Insufficient data
90	Bastimentos Island National Marine Park	🇵🇦 Panama	Insufficient data
91	Vatnajokull National Park	🇮🇸 Iceland	Insufficient data
92	Las Baulas Marine National Park	🇨🇷 Costa Rica	Insufficient data
93	Yosemite National Park	🇺🇸 United States	Insufficient data
94	Picos de Europa National Park	🇪🇸 Spain	Insufficient data
95	Chagres National Park	🇵🇦 Panama	Insufficient data
96	Volcán Barú National Park	🇵🇦 Panama	Insufficient data
97	Darién National Park	🇵🇦 Panama	Insufficient data
98	Braulio Carrillo National Park	🇨🇷 Costa Rica	Insufficient data
99	Sierra Nevada National Park	🇪🇸 Spain	Insufficient data
100	Tortuguero National Park	🇨🇷 Costa Rica	Insufficient data
101	Tapantí-Macizo de la Muerte National Park	🇨🇷 Costa Rica	Insufficient data

← Back to Las Baulas Marine National Park

Hen Harrier

Closest Relatives at Las Baulas Marine National Park

Common Black-Hawk

Roadside Hawk

Plumbeous Kite

Gray-lined Hawk

Crane Hawk

Great Black-Hawk

Broad-winged Hawk

American Swallow-tailed Kite

Short-tailed Hawk

White-tailed Kite

Zone-tailed Hawk

Mississippi Kite

📅 Monthly Probability

☀️ When They're Spotted

Global Distribution

Parks Where Found