Hen Harrier
Hen HarrierHen HarrierHen HarrierHen Harrier

Hen Harrier

Circus cyaneus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
<5% · Rare
overall probability at Montes Azules Biosphere Reserve
11 Verified records at Montes Azules Biosphere Reserve
November Best month highest sighting rate
☀️ 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 →

<5% of wildlife watchers report a Hen Harrier sighting in Montes Azules Biosphere Reserve, based on 11 days of visitor records from GBIF citizen-science data.

Closest Relatives at Montes Azules Biosphere Reserve

Roadside Hawk
LC

Roadside Hawk

☀️ Diurnal Bird

Rupornis magnirostris

10–20% · With luck
Gray-lined Hawk
LC

Gray-lined Hawk

☀️ Diurnal Bird

Buteo nitidus

10–20% · With luck
White Hawk
LC

White Hawk

☀️ Diurnal Bird

Leucopternis albicollis

10–20% · With luck
Broad-winged Hawk
LC

Broad-winged Hawk

☀️ Diurnal Bird

Buteo platypterus

10–20% · With luck
Short-tailed Hawk
LC

Short-tailed Hawk

☀️ Diurnal Bird

Buteo brachyurus

5–10% · With luck
Mississippi Kite
LC

Mississippi Kite

☀️ Diurnal Bird

Ictinia mississippiensis

5–10% · With luck
Plumbeous Kite
LC

Plumbeous Kite

☀️ Diurnal Bird

Ictinia plumbea

5–10% · With luck
Crested Eagle
NT

Crested Eagle

☀️ Diurnal Bird

Morphnus guianensis

Insufficient data
Common Black-Hawk
LC

Common Black-Hawk

☀️ Diurnal Bird

Buteogallus anthracinus

5–10% · With luck
Great Black-Hawk
LC

Great Black-Hawk

☀️ Diurnal Bird

Buteogallus urubitinga

5–10% · Rare
Black Hawk-Eagle
LC

Black Hawk-Eagle

☀️ Diurnal Bird

Spizaetus tyrannus

5–10% · Rare
Double-toothed Kite
LC

Double-toothed Kite

☀️ Diurnal Bird

Harpagus bidentatus

5–10% · Rare

📅 Monthly Probability

<5
Jan
<5
Feb
<5
Mar
<5
Apr
<5
May
<5
Jun
<5
Jul
<5
Aug
<5
Sep
<5
Oct
10–20
Nov
5–10
Dec

☀️ When They're Spotted

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

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

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

Quick answers

What are the chances of seeing a Hen Harrier in Montes Azules Biosphere Reserve?

About 1% of wildlife watchers report a Hen Harrier sighting in Montes Azules Biosphere Reserve, based on 11 days of visitor records from GBIF citizen-science data.

When is the best time to see Hen Harrier in Montes Azules Biosphere Reserve?

November has the highest sighting rate for Hen Harrier in Montes Azules Biosphere Reserve in our monthly data.

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