The MacGillivray's warbler (Geothlypis tolmiei) is a small species of New World warbler. These birds are sluggish and heavy warblers, preferring to spend most of their time on, or near the ground, except when singing.

The MacGillivray's warbler was named by John James Audubon in honor of Scottish ornithologist William MacGillivray, although the proper credit to its discovery goes to John Kirk Townsend. The scientific name "tolmiei" was given in honor of William Fraser Tolmie.

Adult MacGillivray's warblers will grow to be approximately 13 cm {5 to 6 inches} in length. They are an olive-green color on their upperparts and dull yellow below. Males have black heads and breasts, while females and immature birds have drab light gray heads and broken white eye-rings. MacGillivray's warblers are almost identical to their eastern counterparts, the mourning warblers, the primary difference between the two species being the mourning warbler's lack of an eye-ring.

MacGillivray's warblers are migratory and spend their summers in temperate forests in the western United States, and in boreal forests of west Canada. In autumn, these birds migrate to Central America, where they stay in temperate shrublands for the winter.
MacGillivray's Warbler
Date Location Count
2020-10-04 08:30Presidio--Crissy Field1
2020-10-02 17:32Miller/Knox Regional Shoreline1
2020-10-10 07:44Muir Beach1
2020-10-04 10:12Point Molate Beach Park1
2020-10-05 12:30Pt. San Pablo/Pt. Molate1
2020-10-10 13:58Bolinas Lagoon--Pine Gulch1
2020-10-18 10:39Charleston Rd. Marsh1
2020-10-07 06:55Spring Lake Regional Park1
2020-10-01 11:55Campbell Cove and Hole in the Head - ONLY1
2020-10-08 08:48Owl Canyon - ONLY (waterbirds from this site OK)1
2020-10-04 09:40Putah Creek--fishing access #31
2020-10-02 08:05Putah Creek--Pedrick Rd. (YOL Co.)2
2020-10-08 10:36Putah Creek--Levee Rd.1
2020-10-06 09:10Struve Slough--West Marine1
2020-10-20 07:21Babel Slough 1
2020-10-14 12:18Palo Corona RP--Rancho Cañada & South Bank Trail1
2020-10-09 17:44Bixby Canyon1
2020-10-20 15:36Pinnacles NP--campground1
2020-10-04 07:13Taylor Crossing Rd.1
2020-10-01 09:54Tahoe Marsh--via San Francisco Ave.2
2020-10-14 08:20Cornelia Ave. ponding basin1
2020-10-03 07:42Hardie Park/Cayucos Creek (Ocean Ave Bridge to Hwy 1 Bridge), Cayucos1
2020-10-02 12:40Chester railroad grade2
2020-10-02 14:25Del Mar Park--Morro Bay1
2020-10-06 17:00Weaver Creek at Mill St./Timber Ridge Rd.1
2020-10-05 08:58Laguna Lake Park1
2020-10-28 12:397402 - 7418 Hollister Ave (LogMeIn Tipus)1
2020-10-09 14:57Carpinteria Creek1
2020-10-06 17:28Ventura Settling Ponds1
2020-10-04 09:46Laguna Rd. tamarisks2
2020-10-06 13:08Bob Kildee Community Park1
2020-10-17 15:19Wildwood Regional Park5
2020-10-03 08:00Deerhill Community Park1
2020-10-04 10:45California City Central Park2
2020-10-08 07:50Malibu Legacy Park1
2020-10-05 10:03Rancho Sierra Golf Club (Private)1
2020-10-04 09:58Antelope Valley--Roosevelt Church and Tree Row1
2020-10-07 07:33Antelope Valley--E Ave G10 - houses and orchard1
2020-10-11 07:58Stephen Sorensen Park (Desert Avicaching)1
2020-10-01 16:14Vina Vieja, Gwinn and Sunnyslope Parks1
2020-10-02 15:43Jackson Lake1
2020-10-01 15:51San Gabriel Mtns.--Big Pines2
2020-10-03 07:06West San Gabriel River Parkway Nature Trail1
2020-10-02 07:18Grand Avenue Park (Chino Hills)1
2020-10-10 09:15Huntington Central Park--West1
2020-10-05 13:19Huntington Central Park--East1
2020-10-14 10:00Huntington Central Park--Urban Forest1
2020-10-10 07:35Mojave Narrows Regional Park1
2020-10-04 10:42Shoshone Village1
2020-10-03 08:20Yucaipa Regional Park1
2020-10-05 08:10Baker sewage ponds1
2020-10-11 06:57Guajome Regional Park1
2020-10-09 12:50Spring Mountains NRA--Deer Creek Picnic Area1
2020-10-01 12:14Spring Mountains NRA--Fletcher Canyon4
2020-10-09 14:09Birch Aquarium1
2020-10-08 08:55Villa La Jolla Park1
2020-10-08 07:22Desert NWR--Corn Creek (Field Station)1
2020-10-16 07:50Old Poway Park1
2020-10-07 08:00Coachella Valley Preserve, Thousand Palms Oasis1
2020-10-04 06:44Las Vegas--Floyd Lamb Park at Tule Springs1
2020-10-17 11:15Mojave National Preserve--Kelso1
2020-10-04 06:38Pueblo Park1
2020-10-11 09:5529 Palms Inn1
2020-10-02 07:55Harry Griffen Regional Park1
2020-10-10 08:02Clark County Wetlands Park--Silver Bowl Weir1
2020-10-03 07:15Las Vegas Wash--Pabco Area1
2020-10-10 06:37Clark County Wetlands Park--Wells Trailhead1
2020-10-01 16:30Laguna de La Salina1
2020-10-11 07:43Havasu NWR--South Dike1
2020-10-07 09:20Lake Havasu SP--Windsor Beach1
2020-10-01 16:43Brooks Nature Park1
2020-10-05 17:06CCC Campground1
2020-10-06 07:39Cibola Valley Conservation Area1
2020-10-08 06:16Palo Verde Ecological Reserve1
2020-10-02 07:16Yuma West Wetlands1
2020-10-07 07:35Yuma East Wetlands2
2020-10-01 16:43Llano San Quintín--Fila Doble de Tamarisks1
2020-10-09 08:30Quigley WA1
2020-10-10 08:34Dateland1
2020-10-07 11:05Lynndyl -- Sevier River Oxbow Lake1
2020-10-05 06:16Spot Road Farm3
2020-10-12 07:20Granite Basin Lake1
2020-10-04 07:48Wickenburg--Secret Ponds1
2020-10-12 17:21Hassayampa River--Kerkes Trailhead1
2020-10-03 07:12University of Idaho Arboretum and Botanical Gardens1
2020-10-28 15:46Hassayampa River Preserve1
2020-10-13 13:42Hassayampa River--US 60 Rest Area4
2020-10-07 08:40Watson Lake and Riparian Preserve1
2020-10-03 12:05University of Victoria1
2020-10-17 08:33Langford Lake1
2020-10-17 10:15Sun City Grand (general)1
2020-10-04 08:19Salt Lake International Center1
2020-10-10 07:01Glen Canyon NRA--Lonely Dell Ranch1
2020-10-11 07:38Morgan City Wash6
2020-10-03 08:06Bountiful Pond2
2020-10-03 13:45Buffalo Ranch Pond1
2020-10-13 16:28Skunk Creek Riparian Area/Trailhead2
2020-10-08 12:45Anthem Community Park2
2020-10-22 07:29Thunderbird Paseo Park1
2020-10-13 10:40Tres Rios Overbank Wetlands (permit required)1
2020-10-07 06:29Moon Valley Park1
2020-10-08 06:17Reach 11 Recreation Area--Tatum to 56th St1
2020-10-07 07:03Desert Botanical Garden2
2020-10-09 10:40Indian School Park1
2020-10-15 16:48ASU Main Campus1
2020-10-05 17:52George Ditch1
2020-10-25 09:14Ashurst Lake1
2020-10-10 06:45Tempe Town Lake--marsh1
2020-10-06 08:02Desert Breeze Park1
2020-10-03 16:35Iona Island (General)1
2020-10-08 12:08Needle Rock Recreation Area2
2020-10-08 09:00Box Bar Recreation Site1
2020-10-02 06:22Salt River--Granite Reef Recreation Area3
2020-10-13 06:30Riparian Preserve at Gilbert Water Ranch1
2020-10-10 06:10Veterans Oasis Park1
2020-10-01 11:22Salt River--Water Users Recreation Site1
2020-10-04 09:49Meteor Crater RV Park (check in at office for permission/access)1
2020-10-16 14:28Prospector Park1
2020-10-04 06:15GRIC-MAR-5 wetlands (access restricted, entry by permit only)1
2020-10-04 09:20Wilson Creek estuary1
2020-10-02 09:50Camas NWR--Headquarters1
2020-10-01 10:04Market Lake WMA--Market Lake2
2020-10-04 06:45Boyce Thompson Arboretum3
2020-10-13 06:56Santa Cruz River--Cortaro Mesquite Bosque2
2020-10-04 08:24Holbrook--Hidden Cove Golf Course3
2020-10-29 06:26Bahía Tortugas (pueblo)1
2020-10-20 08:14Santa Cruz River--Ina Rd.1
2020-10-10 08:50Arthur Pack Regional Park1
2020-10-02 07:12Christopher Columbus Park1
2020-10-06 07:16Sarasota Trailhead1
2020-10-24 07:50Sweetwater Wetlands1
2020-10-07 14:42Catalina Regional Park--pond1
2020-10-04 08:34Evergreen Cemetery1
2020-10-03 08:40Buenos Aires NWR--Arivaca Cienega1
2020-10-18 06:28Rio Vista Natural Resource Park1
2020-10-28 08:06University of Arizona1
2020-10-06 08:17Himmel Park1
2020-10-13 09:31Silverlake Park1
2020-10-11 06:24Reid Park1
2020-10-03 06:59Sam Lena Park and KERP3
2020-10-20 16:47Randolph GC/Hardesty Building1
2020-10-03 11:50Arivaca Lake1
2020-10-15 07:02Sabino Dam and downstream riparian1
2020-10-12 10:05Morris K. Udall Park1
2020-10-02 07:04Green Valley WRF (controlled access; sign in FIRST at office after entry)1
2020-10-15 15:58Pintail Lake1
2020-10-16 07:15Canoa Ranch Conservation Park1
2020-10-02 08:15Moab--Mill Creek Parkway West of US1911
2020-10-11 08:55Sycamore Canyon (Pajarito Mountains)1
2020-10-12 09:33Agua Caliente Park1
2020-10-03 06:17De Anza Trail--Tubac1
2020-10-09 07:27Tanque Verde Wash--Wentworth Rd.1
2020-10-04 07:09De Anza Trail--Carmen (Clark Crossing Rd)1
2020-10-04 06:08Santa Gertrudis Lane (foot access only)1
2020-10-10 15:53Pena Blanca Canyon1
2020-10-11 07:30Pena Blanca Lake1
2020-10-04 07:10Madera Canyon--Madera Picnic Area1
2020-10-03 17:30Madera Canyon--Santa Rita Lodge1
2020-10-18 09:00Florida Canyon--lower1
2020-10-11 11:15Madera Canyon--Carrie Nation Trail1
2020-10-18 07:12Cienega Creek Preserve (permit required)1
2020-10-06 14:15Patagonia Roadside Rest Area1
2020-10-11 06:22Las Cienegas NCA--Empire Gulch1
2020-10-02 10:24Concho Lake1
2020-10-06 06:35Paton Center for Hummingbirds (Patons' Yard)1
2020-10-17 09:40Guindani Canyon1
2020-10-10 10:59Lyman Lake SP1
2020-10-11 14:15Little Colorado River--South Fork1
2020-10-23 07:40Vizcaino (pueblo)1
2020-10-12 06:39Wenima WA1
2020-10-12 10:27Becker Lake2
2020-10-08 06:39Garden Canyon Rd--BETWEEN Upper Picnic Area and Sawmill Canyon1
2020-10-12 12:10Becker Lake WA--River Walk Trail1
2020-10-18 07:27Discovery Park1
2020-10-03 06:09Carr Canyon--Ramsey Vista CG1
2020-10-07 16:15Dankworth Pond SP1
2020-10-11 06:03Sierra Vista EOP1
2020-10-04 06:15Coronado NM--Joe's Canyon Trail1
2020-10-12 06:12San Pedro RNCA--San Pedro House and trails1
2020-10-09 16:06Gila Box RNCA--Spring Canyon Picnic Area2
2020-10-02 10:52Glen Lake Rotary Park--trails east of the river (formerly East Gallatin Recreation Area-trails east of river)1
2020-10-03 09:53Dolores Ponds (wastewater plant area)1
2020-10-02 12:21Whitewater Draw WA1
2020-10-10 07:08Duncan Birding Trail3
2020-10-25 07:30stakeout Eared Quetzal, FR42 between Sunny Flat and SWRS (2020)1
2020-10-13 11:42Cave Creek Canyon--South Fork1
2020-10-12 08:48Cave Creek Canyon--Sunny Flat CG1
2020-10-03 15:34Bluewater Lake SP1
2020-10-07 09:15Oxbow Park and Preserve1
2020-10-04 08:42Gila NF-- Little Cherry Creek Road and Trail1
2020-10-05 08:58Lake San Cristóbal1
2020-10-03 15:13Rotary Park, Truth or Consequences1
2020-10-17 05:54Onavas (pueblo)1
2020-10-03 09:38Rio Grande Nature Center SP - bosque trails2
2020-10-17 10:04Rio Grande Nature Center SP1
2020-10-03 08:26Rio Grande Nature Center SP -- Candelaria Wetlands1
2020-10-02 17:36ABQ BioPark--Tingley Lagoon2
2020-10-02 17:36Tingley Beach - Bosque Ponds2
2020-10-04 07:41Corrales Bosque -- Romero Rd. entrance2
2020-10-01 17:38UNM--North Golf Course1
2020-10-10 07:52Corrales Bosque -- Dixon Rd access1
2020-10-13 08:54UNM--Main Campus (including Duck Pond)1
2020-10-05 07:23Bosque del Apache NWR1
2020-10-05 09:49Upper Water Canyon2
2020-10-03 08:12Pueblo Canyon WTP Outfall/Wetland (Los Alamos County)1
2020-10-09 08:11Swan Pond, Dona Ana Co.3
2020-10-02 07:38Ohkay Owingeh Fishing Lakes1
2020-10-10 09:10Leonora Curtin Wetland Preserve (open on weekends from 9AM to 3PM, May-Oct)1
2020-10-04 08:40Cañada del Rancho Arroyo - Ranchland Utilities WTP1
2020-10-03 07:53Mesilla Dam4
2020-10-25 07:29NMSU Campus1
2020-10-03 07:06Tellbrook Park - Las Cruces1
2020-10-04 10:50Galisteo1
2020-10-01 10:10Western Road migrant trap1
2020-10-19 08:40Pilar1
2020-10-10 09:22Blanca Wetlands NWR1
2020-10-05 12:37Rio Grande del Norte NM - John Dunn Bridge & Trails1
2020-10-17 09:11Coronado Country Club neighborhood, El Paso (Partially limited access)1
2020-10-08Three Rivers Petroglyph Site1
2020-10-03 09:35Ascarate Park/Lake1
2020-10-10 11:58Rio Bosque Park (Socorro) (FWTX 11)1
2020-10-04 10:15Oliver Lee Memorial SP1
2020-10-06 15:20Bear Creek Lake Park1
2020-10-03 11:33McCall Lake1
2020-10-09 08:30Lon Hagler Reservoir State Wildlife Area1
2020-10-03 09:44Bear Creek Park (Denver)1
2020-10-07 08:43Grandview Cemetery1
2020-10-02 06:58Rocky Mountain Arsenal NWR1
2020-10-06 07:43Bluff Lake Nature Center (Denver Co)1
2020-10-12 12:15Lake Pueblo SP--Valco Ponds1
2020-10-09 07:23Tres Lagunas1
2020-10-03 10:15Wyoming Hereford Ranch1
2020-10-05 08:23J Kenneth Smith Bird Sanctuary1
2020-10-11 07:06Bitter Lake NWR1
2020-10-07 14:50Santuario de los Cactos1
2020-10-10 07:14Carlsbad Caverns NP--Rattlesnake Springs1
2020-10-10 07:38Ute Lake SP - North Area (visitor center, Zia, Yucca, and Cottonwood campgrounds and boat ramp).1
2020-10-05 15:44Conoco Pond1
2020-10-25 07:04Estero San José2
2020-10-01 17:06Ned Houk Park - Pow Wow Pass1
2020-10-02 17:10Ned Houk Park- Patch Work Place1
2020-10-09 13:01Milnesand1
2020-10-17 15:00Jardín Botánico Culiacán7
2020-10-07 17:09Holly Rest Area1
2020-10-13 10:22Playa del Rey1
2020-10-14 10:07Camino Singayta3
2020-10-14 16:31Sendero Estanque de Aguas Residuales de San Blas1
2020-10-15 08:15Camino Vivero Singayta1
2020-10-05 07:11Camino al Cocodrilario1
2020-10-24 08:00Terracería La Palma-Tecuitata4
2020-10-27 07:29Reserva Ecológica Sierra de San Juan--Cerro Alto1
2020-10-07 08:36Cerro de la Cruz1
2020-10-24 09:14Arroyo Los Izotes (acceso restringido)1
2020-10-17 08:13Sendero Capomo1
2020-10-17 09:27Laguna de Tepeltitic1
2020-10-11 08:20Laguna La Colorada2
2020-10-17 10:10ANP Sierra del Águila--Los Llanitos1
2020-10-25 08:22ANP Sierra del Águila2
2020-10-04 09:27Area de Protección de Flora y Fauna Bosque La Primavera--Caseta 21
2020-10-16 08:20Sendero El Caracol3
2020-10-05 08:33Jardín Botánico del Instituto de Biología UNAM1
2020-10-24 12:17Parque Ecoturístico Tepozan1
2020-10-02 07:51Canal Nacional--Prado Churubusco2
2020-10-17 08:15Parque Ecológico de la Ciudad de México1
2020-10-16 13:31Ciénega Grande de Xochimilco2
2020-10-13 10:37Lago de los Reyes Azettecas1
2020-10-20 12:12Bosques de San Andrés de la Cal1
2020-10-17 07:56Parque Mariano Matamoros1
2020-10-24 07:27Parque Ecoturistico Avila Camacho1
2020-10-03 07:56Parque Ecológico El Haya1
2020-10-18 07:02Parque Ecológico Cerro de Macuiltépetl3
2020-10-01 16:54Planta de Tratamiento de Aguas Residuales CEMAS Coatepec (acceso restringido)1
2020-10-17 08:00Cerro del Borrego2
2020-10-17 18:14Camino a Sima de las Cotorras1
2020-10-17 10:53PN Cañón del Sumidero--Mirador Los Chiapas1
2020-10-29 07:46Humedales de Montaña La Kisst, Laguna de Chapultepec y Sedem1
2020-10-14 10:17Cerrito de San Cristóbal2
2020-10-17 06:39Parque Ecoturístico Montetik--Camino a Corralito (acceso restringido)1
2020-10-07 16:52Area de Protección de Flora y Fauna Nahá1
2020-10-09 06:30Finca Hamburgo1
2020-10-17 08:27Finca Santa Victoria1
2020-10-13 07:00Mirador Rey Tepepul1
2020-10-06 09:55La Playa3
2020-10-29 10:30Godinez--Aldea Los Robles1
2020-10-25 13:03RNP Los Robles1
2020-10-26 15:51Paraiso Verde Lodge1
2020-10-04 07:10RNP Chajbaoc1
2020-10-06 07:38Instituto Menonita Bezaleel1
2020-10-26 17:27SFF Setonq (acceso restringido)1
2020-10-11 08:25Club Campestre La Montaña1
2020-10-24 06:40Finca El Barretal4
2020-10-28 07:15Parque Ecológico Cayalá1
2020-10-25 11:34PN Volcán Pacaya y Laguna de Calderas--volcán, matorral entre conos 2200 msnm2
2020-10-09 07:27Laguna del Bosque1
2020-10-10 06:29Green Rush1
2020-10-30 11:00PN Los Volcanes--Sector Cerro Verde1
2020-10-17 09:00Cerro El Pital1
2020-10-22 08:30Reserva Privada "La Burbuja" en Miramundo1
2020-10-25 12:34PN El Boquerón1
2020-10-30 09:57Ecoparque El Espino1
2020-10-17 06:58Reserva Biológica Montecillos--Sector Potrerillos1
2020-10-03 06:40Aldea Las Anonas [Carretera de 6 Kms]1
2020-10-18 13:50Posada San Lazaro1
2020-10-06 06:00Reserva Natural Miraflor1
2020-10-03 20:39Finca Lindos Ojos1
2020-10-25 08:17Tree Tops Park1
2020-10-19 12:35Pinares San Rafael del Norte4
2020-10-30 10:48Reserva El Jaguar 2
2020-10-15 06:01Habitarte - Reserva El Bajo1
2020-10-23 05:27Finca Los Wilas1
2020-10-27 08:03Estación Biológica Monteverde--Camino1
2020-10-08 08:09Naranjo--Cerro Espíritu Santo1
2020-10-20 07:48PN Tapanti--Sector Tapanti2
2020-10-24 08:33Paraíso Birding Paradise1