MacGillivray's Warbler
MacGillivray's WarblerMacGillivray's WarblerMacGillivray's WarblerMacGillivray's Warbler

MacGillivray's Warbler

Geothlypis tolmiei

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability <5% · Rare
at Saguaro National Park
888 Verified sightings at Saguaro National Park From 2019 to 2026
9,166 Verified sightings across all 40 parks From 2019 to 2026
September Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the MacGillivray's Warbler

MacGillivray's warbler (Geothlypis tolmiei) is a species of bird in the family Parulidae, the New World warblers. It is found from southeastern Alaska and western Canada to Panama. MacGillivray's warbler was formally described by John Townsend in 1839 with the binomial Sylvia Tolmiei [sic] and the English name "Tolmie's Warbler". He drew on paintings in Audubon's Birds of America, in which Audubon had confused it with what was later named the mourning warbler (Geothlypis philadelphia). Townsend's names honor his friend William Fraser Tolmie. MaGillivray's and the mourning warblers are sister species and hybridize extensively. Audubon gave the species its current English name to honor William MacGillivray.

MacGillivray's warbler was long assigned to the genus Oporornis. The American Ornithological Society moved it to its present genus Geothlypis in 2011. The IOC made the change in 2012, BirdLife International's Handbook of the Birds of the World (HBW) in 2016, and the Clements taxonomy by 2018.

However, the further taxonomy of MacGillivray's warbler is unsettled. The IOC, HBW, and AviList assign it two subspecies, the nominate G. t. tolmiei (Townsend, 1839... Wikipedia →

Closest Relatives at Saguaro National Park

Common Yellowthroat
LC

Common Yellowthroat

☀️ Diurnal Bird

Geothlypis trichas

Daily sighting probability ~10% · With luck
Kentucky Warbler
LC

Kentucky Warbler

☀️ Diurnal Bird

Geothlypis formosa

Daily sighting probability Insufficient data
Yellow-rumped Warbler
LC

Yellow-rumped Warbler

☀️ Diurnal Bird

Setophaga coronata

Daily sighting probability ~40% · Likely
Lucy's Warbler
LC

Lucy's Warbler

☀️ Diurnal Bird

Leiothlypis luciae

Daily sighting probability ~20% · Possible
Yellow Warbler
LC Endemic

Yellow Warbler

☀️ Diurnal Bird

Setophaga petechia

Daily sighting probability ~20% · Possible
Northern Yellow Warbler

Northern Yellow Warbler

☀️ Diurnal Bird

Setophaga aestiva

Daily sighting probability ~20% · Possible
Orange-crowned Warbler
LC

Orange-crowned Warbler

☀️ Diurnal Bird

Leiothlypis celata

Daily sighting probability ~20% · Possible
Wilson's Warbler
LC

Wilson's Warbler

☀️ Diurnal Bird

Cardellina pusilla

Daily sighting probability ~10% · With luck
Audubon's Warbler

Audubon's Warbler

☀️ Diurnal Bird

Setophaga auduboni

Daily sighting probability ~10% · With luck
Black-throated Gray Warbler
LC

Black-throated Gray Warbler

☀️ Diurnal Bird

Setophaga nigrescens

Daily sighting probability ~10% · With luck
Canada Warbler
LC

Canada Warbler

☀️ Diurnal Bird

Cardellina canadensis

Daily sighting probability <5% · Rare
Northern Parula
LC

Northern Parula

☀️ Diurnal Bird

Setophaga americana

Daily sighting probability <5% · Rare

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 Daily sighting probability
1 Yosemite National Park 🇺🇸 United States
~30%
2 El Triunfo 🇲🇽 Mexico
~20%
3 Glacier National Park 🇺🇸 United States
~20%
4 Grand Teton National Park 🇺🇸 United States
~20%
5 Cabo Pulmo National Park 🇲🇽 Mexico
~20%
6 Sequoia and Kings Canyon National Parks 🇺🇸 United States
~20%
7 Rocky Mountain National Park 🇺🇸 United States
~10%
8 La Tigra National Park 🇭🇳 Honduras
~10%
9 Celaque National Park 🇭🇳 Honduras
~10%
10 Big Bend National Park 🇺🇸 United States
~10%
11 Death Valley National Park 🇺🇸 United States
~10%
12 Great Bear Rainforest 🇨🇦 Canada
~10%
13 Yellowstone National Park 🇺🇸 United States
~10%
14 Shenandoah National Park 🇺🇸 United States
<5%
15 Banff National Park 🇨🇦 Canada
<5%
16 Jasper National Park 🇨🇦 Canada
<5%
17 Grand Canyon National Park 🇺🇸 United States
<5%
18 Guadalupe Mountains National Park 🇺🇸 United States
<5%
19 Kluane National Park 🇨🇦 Canada
<5%
20 Cañón del Sumidero National Park 🇲🇽 Mexico
<5%
21 Zion National Park 🇺🇸 United States
<5%
22 Olympic National Park 🇺🇸 United States
<5%
23 Pacific Rim National Park Reserve 🇨🇦 Canada
<5%
24 Bahía de Loreto National Park 🇲🇽 Mexico
<5%
25 Redwood National Park 🇺🇸 United States
<5%
26 Saguaro National Park 🇺🇸 United States
<5%
27 Volcán Barú National Park 🇵🇦 Panama
<5%
28 Joshua Tree National Park 🇺🇸 United States
<5%
29 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico
<5%
30 Tapantí-Macizo de la Muerte National Park 🇨🇷 Costa Rica
<5%
31 La Amistad International Park (Panama) 🇵🇦 Panama
<5%
32 Channel Islands National Park 🇺🇸 United States
<5%
33 Monteverde Cloud Forest Reserve 🇨🇷 Costa Rica
<5%
34 Los Quetzales National Park 🇨🇷 Costa Rica
<5%
35 Arenal Volcano National Park 🇨🇷 Costa Rica
<5%
36 Reserva de la Biosfera Mariposa Monarca 🇲🇽 Mexico
Insufficient data
37 Rincón de la Vieja National Park 🇨🇷 Costa Rica
Insufficient data
38 Chirripó National Park 🇨🇷 Costa Rica
Insufficient data
39 Braulio Carrillo National Park 🇨🇷 Costa Rica
Insufficient data
40 Everglades National Park 🇺🇸 United States
Insufficient data

Quick answers

What are the chances of seeing a MacGillivray's Warbler in Saguaro National Park?

Under 5% of wildlife watchers report a MacGillivray's Warbler sighting in Saguaro National Park, based on 888 verified sightings from GBIF citizen-science data.

When is the best time to see MacGillivray's Warbler in Saguaro National Park?

September has the highest sighting rate for MacGillivray's Warbler in Saguaro National Park in our monthly data.

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