Willet
WilletWilletWilletWillet

Willet

Tringa semipalmata

50–60% · Likely
overall probability at Ría Lagartos Biosphere Reserve
515 Verified records at Ría Lagartos Biosphere Reserve
October Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The willet (Tringa semipalmata) is a large shorebird in the family Scolopacidae. It is a relatively large and robust sandpiper and is the largest of the species called "shanks" in the genus Tringa. Its closest relative is the lesser yellowlegs, a much smaller bird with a very different appearance apart from the fine, clear, and dense pattern of the neck, which both species show in breeding plumage. It breeds in North America and the West Indies and winters in southern North America, Central America, the West Indies and South America. Wikipedia →

50–60% of wildlife watchers report a Willet sighting in Ría Lagartos Biosphere Reserve, based on 515 days of visitor records from GBIF citizen-science data.

Closest Relatives at Ría Lagartos Biosphere Reserve

Greater Yellowlegs
NT

Greater Yellowlegs

☀️ Diurnal Bird

Tringa melanoleuca

20–30% · Possible
Lesser Yellowlegs
VU

Lesser Yellowlegs

☀️ Diurnal Bird

Tringa flavipes

20–30% · Possible
Solitary Sandpiper
LC

Solitary Sandpiper

☀️ Diurnal Bird

Tringa solitaria

5–10% · With luck
Ruddy Turnstone
NT

Ruddy Turnstone

☀️ Diurnal Bird

Arenaria interpres

40–50% · Likely
Least Sandpiper
NT

Least Sandpiper

☀️ Diurnal Bird

Calidris minutilla

40–50% · Likely
Sanderling
LC

Sanderling

☀️ Diurnal Bird

Calidris alba

30–40% · Possible
Spotted Sandpiper
LC

Spotted Sandpiper

☀️ Diurnal Bird

Actitis macularius

30–40% · Possible
Short-billed Dowitcher
VU

Short-billed Dowitcher

☀️ Diurnal Bird

Limnodromus griseus

20–30% · Possible
Marbled Godwit
VU

Marbled Godwit

☀️ Diurnal Bird

Limosa fedoa

10–20% · With luck
Western Sandpiper
LC

Western Sandpiper

☀️ Diurnal Bird

Calidris mauri

10–20% · With luck
Semipalmated Sandpiper
NT

Semipalmated Sandpiper

☀️ Diurnal Bird

Calidris pusilla

10–20% · With luck
Hudsonian Whimbrel

Hudsonian Whimbrel

☀️ Diurnal Bird

Numenius hudsonicus

10–20% · With luck

📅 Monthly Probability

60–70
Jan
40–50
Feb
40–50
Mar
40–50
Apr
40–50
May
40–50
Jun
60–70
Jul
50–60
Aug
50–60
Sep
60–70
Oct
50–60
Nov
50–60
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 Ría Lagartos Biosphere Reserve 🇲🇽 Mexico
50–60%
2 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico
50–60%
3 Celestún Biosphere Reserve 🇲🇽 Mexico
40–50%
4 Ostional Wildlife Refuge 🇨🇷 Costa Rica
30–40%
5 Bahía de Loreto National Park 🇲🇽 Mexico
30–40%
6 Las Baulas Marine National Park 🇨🇷 Costa Rica
20–30%
7 Channel Islands National Park 🇺🇸 United States
20–30%
8 Cabo Blanco Absolute Nature Reserve 🇨🇷 Costa Rica
10–20%
9 Marino Ballena National Park 🇨🇷 Costa Rica
10–20%
10 Coiba National Park 🇵🇦 Panama
10–20%
11 Arrecifes de Cozumel National Park 🇲🇽 Mexico
10–20%
12 Ciénaga de Zapata 🇨🇺 Cuba
10–20%
13 Jaragua National Park 🇩🇴 Dominican Republic
10–20%
14 Everglades National Park 🇺🇸 United States
5–10%
15 Tortuguero National Park 🇨🇷 Costa Rica
5–10%
16 Santa Rosa National Park 🇨🇷 Costa Rica
5–10%
17 Paracas National Reserve 🇵🇪 Peru
5–10%
18 Utría National Natural Park 🇨🇴 Colombia
5–10%
19 Cahuita National Park 🇨🇷 Costa Rica
5–10%
20 Gandoca-Manzanillo Wildlife Refuge 🇨🇷 Costa Rica
5–10%
21 Piedras Blancas National Park 🇨🇷 Costa Rica
5–10%
22 Corcovado National Park 🇨🇷 Costa Rica
<5%
23 Death Valley National Park 🇺🇸 United States
<5%
24 La Amistad International Park (Panama) 🇵🇦 Panama
<5%
25 Bastimentos Island National Marine Park 🇵🇦 Panama
<5%
26 Machalilla National Park 🇪🇨 Ecuador
<5%
27 Tayrona National Natural Park 🇨🇴 Colombia
<5%
28 Manuel Antonio National Park 🇨🇷 Costa Rica
<5%
29 Palo Verde National Park 🇨🇷 Costa Rica
<5%
30 Sian Ka'an Biosphere Reserve 🇲🇽 Mexico
<5%
31 Big Cypress National Preserve 🇺🇸 United States
<5%
32 Darién National Park 🇵🇦 Panama
<5%
33 Point Pelee National Park 🇨🇦 Canada
<5%
34 Galápagos Islands 🇪🇨 Ecuador
<5%
35 Carara National Park 🇨🇷 Costa Rica
<5%
36 Yellowstone National Park 🇺🇸 United States
<5%
37 Acadia National Park 🇺🇸 United States
<5%
38 Grand Canyon National Park 🇺🇸 United States
<5%
39 Sequoia and Kings Canyon National Parks 🇺🇸 United States
<5%
40 Rocky Mountain National Park 🇺🇸 United States
<5%
41 Glacier National Park 🇺🇸 United States
<5%
42 Olympic National Park 🇺🇸 United States
<5%
43 Isla del Coco National Park 🇨🇷 Costa Rica
Insufficient data
44 Gros Morne National Park 🇨🇦 Canada
Insufficient data
45 Shenandoah National Park 🇺🇸 United States
Insufficient data
46 Biotopo Cerro Cahuí 🇬🇹 Guatemala
Insufficient data
47 San Lorenzo Protected Forest 🇵🇦 Panama
Insufficient data
48 Riding Mountain National Park 🇨🇦 Canada
Insufficient data
49 Elk Island National Park 🇨🇦 Canada
Insufficient data
50 Cape Breton Highlands National Park 🇨🇦 Canada
Insufficient data
51 Badlands National Park 🇺🇸 United States
Insufficient data
52 Caroni Swamp 🇹🇹 Trinidad and Tobago
Insufficient data
53 Parque Natural Metropolitano 🇵🇦 Panama
Insufficient data
54 Grand Teton National Park 🇺🇸 United States
Insufficient data
55 Redwood National Park 🇺🇸 United States
Insufficient data
56 Chagres National Park 🇵🇦 Panama
Insufficient data
57 Zion National Park 🇺🇸 United States
Insufficient data
58 Big Bend National Park 🇺🇸 United States
Insufficient data
59 Arenal Volcano National Park 🇨🇷 Costa Rica
Insufficient data
60 Yosemite National Park 🇺🇸 United States
Insufficient data

Quick answers

What are the chances of seeing a Willet in Ría Lagartos Biosphere Reserve?

About 54% of wildlife watchers report a Willet sighting in Ría Lagartos Biosphere Reserve, based on 515 days of visitor records from GBIF citizen-science data.

When is the best time to see Willet in Ría Lagartos Biosphere Reserve?

October has the highest sighting rate for Willet in Ría Lagartos Biosphere Reserve in our monthly data.

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