The mountain chickadee (Poecile gambeli) is a small songbird, a passerine bird in the tit family Paridae. Often, it is still placed in the genus Parus with most other tits, but mtDNA cytochrome b sequence data and morphology suggest that separating Poecile more adequately expresses these birds' relationships. The American Ornithologists' Union has been treating Poecile as a distinct genus for some time.

The mountain chickadees are known colloquially as the cheeseburger birds, as their call sounds like they are saying "cheeseburger" They are also well known for their renowned forgetfulness.

Adults of both sexes have a black cap joining a black postocular stripe behind distinctive white eyebrows. Their backs and flanks are gray and they have paler gray underparts; they have a short black bill, and a black bib. The typical adult wingspan is 7.5 in (19 cm), and the overall length is 5–6 in (13–15 cm).

Common inhabitants of the mountainous regions of the western United States, their range extends from the southern Yukon to California and Rocky Mountain States in the United States. A few mountain chickadees may migrate locally up the mountains in the summer and down into the mountain foothills in the winter; but this phenomenon is not well documented. In the Santa Fe Valley of the southern Rocky Mountains, in New Mexico, they can be found about 300 ft (91 m) above town, at 7,300 ft (2,200 m), as well at the base of the tallest mountains, Tesuque and Baldy at 10,400 ft (3,200 m); that mountain base is located 25 minutes up the one mountain road from the valley.

They breed monogamously, producing 1 to 2 broods per year. Incubation by the female is 14 days. The young are altricial, and stay in the nest for 21 days while being fed by both parents.

Their primary diet is insects during the summer and breeding season; conifer seeds and other plant seeds are taken throughout the year. They cling to the undersides of branches and to tree trunks, searching for food in the bark or breaking seeds open by hammering them with their beaks.

Their call is a throaty chick-adee-dee-dee, while their song is a 3- or 4-note descending whistle fee-bee-bay or fee-bee-fee-bee. They travel in pairs or small groups, and may join multi-species feeding flocks after breeding season.

Recent studies have indicated that in mixed flocks, black-capped chickadees become dominant over mountain chickadees.

The specific name honors naturalist William Gambel.
Mountain Chickadee
Date Location Count
2019-12-08 11:30High Plains Grasslands Research Station3
2019-12-07 13:42Castlewood Canyon SP1
2019-11-29 12:43Castlewood Canyon SP--Inner Canyon/Lake Gulch Loop2
2019-12-03 09:45Lory State Park6
2019-11-27 14:06Ish Reservoir (Larimer/Boulder cos.)1
2019-11-29 09:22Mountain View Cemetery (Pueblo Co.)3
2019-12-10 07:40Medicine Bow NF--Happy Jack Area8
2019-12-06 07:15Sand Creek at Stetson Hills2
2019-12-08 08:20Palmer Park7
2019-11-29 12:45Reflection Pond2
2019-11-29 09:35LaPrele Park3
2019-12-01 09:05University of Wyoming3
2019-11-28 13:21Labonte Park2
2019-12-10 09:40Smith Creek Ponds1
2019-12-08 14:54Big Stratton Reservoir1
2019-12-08 08:30Spruce Mountain Open Space10
2019-12-02 10:53Ute Valley Park1
2019-11-29 11:15Colorado Springs Utilities Xeriscape Gardens2
2019-11-29 12:30Bear Creek Park West (El Paso)5
2019-12-07 09:41Starsmore Discovery Center1
2019-12-06 09:35Rock Ledge Ranch21
2019-12-05 10:46Bear Creek Nature Center3
2019-12-09 07:53Red Rock Canyon Open Space1
2019-12-08 10:38Blodgett Peak Open Space4
2019-12-07 09:00Denver West Office Park1
2019-12-08 14:48Chautauqua Park11
2019-12-08 09:30Gregory Canyon5
2019-12-02 07:55Eldorado Mountain Open Space--Goshawk Ridge Trail2
2019-12-10 12:06Deer Creek Canyon Park--Meadowlark Trail1
2019-11-28 13:46Red Rocks Park--Trading Post1
2019-12-09 08:04Rainbow Gulch Trail6
2019-12-07 09:25Mount Falcon Park--Parmalee Trail4
2019-12-01 14:57Matthews-Reeser Bird Sanctuary1
2019-12-07 08:35Catamount Recreation Area--Elder Fehn Trail20
2019-12-07 10:57Fillius Park3
2019-11-27 13:23Rocky Mountain NP--Bear Lake Rd.4
2019-12-07 12:02Alderfer-Three Sisters Park7
2019-12-05 13:20North Lake State Wildlife Area2
2019-11-29 11:33Mud Lake Open Space2
2019-12-06 07:04Caribou Ranch Open Space14
2019-12-06 14:15Cub Creek Trail (Jefferson Co)3
2019-12-07 09:42Rainbow Lakes area12
2019-12-09 10:40The Banks Campground & Canyon1
2019-12-10 15:33Buffalo (town)1
2019-12-04 10:45Clear Creek Trail2
2019-12-06 13:00Florissant Fossil Beds NM5
2019-12-01 13:48Story Fish Hatchery3
2019-11-30 09:05Winter Park Ski Area3
2019-11-29 10:03Bradford Brinton Memorial and Museum2
2019-11-30 09:35Sebastian Canyon2
2019-11-28 09:47Willow Creek--Camino Baca Grande to W Badger Rd8
2019-12-09 10:03South Crestone Creek Park10
2019-11-28 11:35North Crestone Creek Campground11
2019-12-03 11:45Colorado College & Baca Campus Rd4
2019-12-07 12:45Sipapu Ski Resort Campground2
2019-12-04 09:01Silverthorne WTP5
2019-12-10 12:15Fairplay (town)1
2019-11-27 15:13Vail (town)2
2019-11-27 12:10Saguache (town)5
2019-12-08 08:30Davis Mountains Preserve (Nature Conservancy)2
2019-12-03 14:20Randall Davey Audubon Center2
2019-12-07 08:57Davis Mountains Preserve--Mt. Livermore Trail3
2019-12-07 13:15Davis Mtns--Tobe Canyon1
2019-12-09 09:44Lake Creek Village Wetlands3
2019-12-06 10:05Lower Pueblo Canyon Wetlands3
2019-12-06 07:59Gonzales Canyon1
2019-12-09 08:03Confluence of Pueblo and Acid Canyons1
2019-12-09 10:50Los Alamos Nature Center2
2019-12-09 08:39Upper Water Canyon4
2019-11-27 08:48Santa Fe NF--Sawyer Hill4
2019-12-07 16:08Northstar Preserve, East Aspen trail2
2019-12-03 08:02Aspen Center for Environmental Studies6
2019-11-27 12:03Cibola NF - Doc Long Picnic Ground and Bill Spring Trail4
2019-11-27 12:50Cibola NF - Cienaga Canyon Picnic Area4
2019-12-07 13:00Cibola NF - Capulin Spring3
2019-12-10 14:16Cibola NF -- Sandia Crest4
2019-12-06 09:17Corrales Bosque -- Dixon Rd access1
2019-11-30 11:28Alameda Bridge & Open Space2
2019-12-07 14:02ABQ BioPark--Tingley Lagoon1
2019-12-07 09:18Rio Grande Valley SP -- South of Pueblo Montano1
2019-12-09 13:03Ridgway SP--Marina area3
2019-12-07 13:47Water Canyon2
2019-12-06 09:30Pastorius Reservoir2
2019-12-06 09:33Animas River--Huck Finn Pond & Hatchery area2
2019-12-09 07:32Norwood (town)1
2019-11-28 14:58Orchard Mesa Cemetery2
2019-11-29 14:06Chico Hot Springs1
2019-11-30 10:52Drinking Horse Trail8
2019-12-04 13:14The 'M' Trail70
2019-12-05 12:35Bozeman Fish Technology Center 2
2019-12-10 10:55Story Hills1
2019-12-10 10:39Sunset Hills Cemetery and Lindley Park10
2019-12-10 10:13Gallagator/Linear Park Trail6
2019-12-08 08:56Graf Park1
2019-12-04 10:45Montana State University2
2019-11-29 14:30Duck Creek Pond5
2019-12-02 12:05Willow Creek1
2019-11-30 11:32Gates of the Mountain1
2019-11-30 12:40Ennis Lake--North Shore2
2019-11-29 10:57Forestvale Cemetery1
2019-12-03 06:46Rexburg (Town)1
2019-12-06 13:00Bear Lake--West Shoreline1
2019-12-10 11:05Idaho Falls Greenbelt--River Parkway3
2019-12-04 11:35Lost Creek State Park6
2019-12-07 12:45Dry Canyon (Cache Co.) -- Lower (5000'-6500')1
2019-12-05 10:50Georgetown Lake--Stuart Mill Bay2
2019-12-06 13:02Powder Ridge Village & Feeder4
2019-12-07 08:50Powder Mountain Ski Resort6
2019-11-29 13:15Pincher Creek (town)1
2019-12-08 08:00Pinebrook1
2019-12-07 10:59Calgary--Carburn Park1
2019-11-28 14:41Swan River NWR1
2019-12-07 09:25Calgary--Queen's Park Cemetery1
2019-11-29 10:30Calgary--Confederation Park1
2019-12-01 14:03Parley's Mitigation Area2
2019-12-10 14:42Little Cottonwood Canyon -- Alta Town Office Feeders2
2019-12-08 12:10Little Cottonwood Canyon--Alta's Collins Lift Feeders4
2019-12-07 13:15Little Cottonwood Canyon--Alta's Wildcat Valley5
2019-12-06 10:10Millcreek Canyon2
2019-12-05 11:06Ogden Cemetery1
2019-11-29 10:18Alpine Loop Rd.--Pine Hollow Trailhead3
2019-11-28 12:41Greenough Park1
2019-12-09 12:47Whitefish River Trail1
2019-11-28 11:34Flathead Lake--Dayton Bay3
2019-12-08 12:21Blue Mountain Recreation Area6
2019-12-10 10:01Flathead Lake--Big Arm SP4
2019-12-08 14:34Blue Mountain Nature Trail8
2019-12-05 13:27McClain Creek Drainage2
2019-11-28 09:56Lake Mary Ronan SP9
2019-11-30 14:45Boulder Town -- Main Pond2
2019-12-03 12:10Cedar Fort2
2019-11-30 11:45Peter Lougheed PP--Highwood Pass2
2019-12-02 09:46Bow Valley Provincial Park6
2019-12-07 10:07Kananaskis--Mount Lorette/Hay Meadows1
2019-11-27 07:44Mt. Lemmon--Palisades area1
2019-11-27 11:11Ashurst Lake1
2019-11-27 10:15Mt. Lemmon--Mt Bigelow Rd2
2019-12-01 13:34Mt. Lemmon--Summerhaven2
2019-12-09 12:40Rio de Flag--Picture Canyon4
2019-11-28 13:50Banff National Park--Lake Minnewanka west end2
2019-12-04 11:00Banff National Park--Two Jack Lake4
2019-12-09 13:56Walnut Canyon Lakes2
2019-11-28 14:45Humphrey Lake2
2019-12-10 07:53Elden Spring6
2019-12-05 13:08Banff National Park--Whiskey Creek2
2019-11-27 09:02Kootenay Fish Hatchery3
2019-11-27 11:28Wardner--Ha Ha Creek Rd15
2019-12-07 08:00Thorpe Park3
2019-12-02 16:00AZ 87--mile 273 (Mexican Jay spot)7
2019-12-08 11:58Kachina Wetlands3
2019-12-06 14:34Cranbrook--Irrigation Fields South Pond4
2019-12-06 10:30Oak Creek Canyon--Cave Springs CG18
2019-11-27 08:20Bell Rock Trail1
2019-12-08 12:06Wycliffe--Clearview Road6
2019-12-08 10:31Banff NP--Boom Lake Trail4
2019-11-28 13:00Marysville - Lone Butte2
2019-11-30 14:55Grand Canyon NP--Yavapai Point8
2019-12-09 10:29Marysville, BC, CA4
2019-11-27 07:39Grand Canyon NP--Kolb Studio3
2019-12-07 12:18Grand Canyon NP--Maricopa Point1
2019-12-05 08:21Yoho National Park--Field1
2019-11-30 11:10Zion NP1
2019-12-03 13:00Southern Utah University1
2019-11-28 13:28Diamond Lake1
2019-12-05 10:55North Fork Payette River at Cascade2
2019-12-10 14:03Mt. Spokane Foothills--Madison/Holcomb Roads2
2019-12-05 14:16Mann Lake4
2019-12-02 10:12University of Idaho Arboretum and Botanical Gardens1
2019-12-05 11:14Gonzaga University--Campus2
2019-12-02 11:03Philleo Lake1
2019-12-09 10:25Lucky Peak SP--Discovery Unit1
2019-11-30 12:49Dry Creek Cemetery2
2019-12-08 12:15Colville Valley--Colville Flats1
2019-12-09 13:03Mill Canyon (Lincoln Co.)2
2019-11-28 13:06Central Ferry HMU2
2019-12-08 13:45Celebration Park2
2019-12-08 11:19Sprague Lake (Adams Co.)3
2019-11-30 12:45Enderby Cliffs3
2019-12-09 09:15Silver Star3
2019-12-06 10:00Jasper Mountain (Walla Walla Co.)2
2019-12-07 12:00Kelowna--East Kelowna Estates2
2019-12-07 11:07Kelowna--Hall Road area1
2019-11-28 13:02Regal Ridge (general)10
2019-11-30 14:35Riverside Park2
2019-11-28 11:02Anarchist Mountain - Long Joe Road5
2019-12-10 13:20Westbank--mouth of Powers Creek1
2019-12-07 10:40Northrup Canyon1
2019-12-08 10:55Crystal Mountain4
2019-11-30Penticton--West Bench2
2019-12-05 09:59Kamloops--Riverside Park1
2019-12-01 07:12Knutsford--Edith Lake Road16
2019-12-04 08:10Logan Lake3
2019-12-08 08:04Logan Lake Ski Trails4
2019-12-08 13:49Logan Lake Marsh4
2019-12-08 08:32Bridge Creek Trailhead2
2019-11-29 09:17Lake Chelan NRA--Stehekin--Golden West/Lake Shore Trail3
2019-11-29 09:21WDFW/Audubon site-2019-Nahahum Canyon Rd-79596 (Restricted)2
2019-12-07 11:56Cashmere (town)1
2019-12-05 10:40Lake Wenatchee SP2
2019-12-10 13:55Scout Island, Williams Lake2
2019-12-10 10:48Amargosa Community Park2
2019-11-28 14:44Seton River--lower spawning channel1
2019-12-03 12:00Becher's Prairie & Lakes North of Hwy 20 (General)2
2019-12-05 09:58Wolfs Den1
2019-12-08 15:36Dyer State Wayside1
2019-12-09 13:12Bear Hollow County Park4
2019-12-02 12:09Laguna Mtns.--mile 19 pullout6
2019-12-10 14:00Lake Hemet2
2019-12-06 12:14Idyllwild Nature Center6
2019-11-30 11:37Julian--residential1
2019-12-05 11:10Lake Fulmor7
2019-12-09 14:04Palomar Observatory3
2019-12-09 09:20Palomar Mountain SP--Doane Pond6
2019-12-02 15:11UCLA--Lake Arrowhead Conference Center1
2019-11-28 08:19Mojave Narrows Regional Park4
2019-11-29 11:00Conboy NWR--Willard Springs Foot Trail2
2019-12-05 09:42Hood River mouth1
2019-12-04 12:29Spring Creek Fish Hatchery2
2019-11-30 12:43Charles Richey Sr Viewpoint1
2019-11-30 13:03Sierra Club San Antonio Ski Hut8
2019-12-06 10:29Angeles NF--Blue Ridge Road (CA-2 to Blue Ridge Camp)1
2019-12-09 12:40Jackson Lake1
2019-12-08 12:41Tucker Wildlife Sanctuary1
2019-12-05 10:27Smith Rock SP1
2019-12-06 09:30Aurora Park1
2019-12-02 07:05Angeles NF--Sycamore Flat Campground2
2019-12-09 09:04Bart Spendlove Memorial Park1
2019-12-09 12:00Eagle Lake, Chilcotin6
2019-12-08 08:07Bent Tree Park2
2019-12-07 12:10Waterman Mountain Trail6
2019-12-03 13:31Hatfield Lake3
2019-11-30 11:05Bishop City Park5
2019-12-08 11:11Bishop Country Club2
2019-12-06 14:38Pilot Butte SP2
2019-12-08 12:22Tumalo SP7
2019-12-10 08:32Sawyer Park8
2019-12-08 11:16Riley Ranch Nature Reserve5
2019-12-08 14:05First Street River Trail2
2019-12-10 10:05Drake Park4
2019-12-01 09:13Deschutes River Trail--Old Mill (Mill A and Loggers Loops)2
2019-12-08 14:05Farewell Bend Park1
2019-12-10 11:30stakeout Blue Jay, Couch Market Rd. (2019)6
2019-11-29 10:25Deschutes River Trail--South Canyon Reach8
2019-12-08 08:25Farnsworth Park2
2019-12-10 12:10Shevlin Park10
2019-12-05 15:01Entrada/Awbrey Hall Burn4
2019-11-29 11:00High Desert Museum10
2019-12-01 10:23Mountain View Cemetery (LA Co.)2
2019-11-28 11:02Aspendell1
2019-11-29 11:01Occidental College1
2019-11-30 15:00Sunriver Resort8
2019-12-01 12:40Suttle Lake--Link Creek Campground6
2019-12-10 14:00La Pine SP
2019-12-05 13:50Lundy Lake Rd.1
2019-12-08 11:02Klamath Marsh NWR--Headquarters14
2019-12-10 12:44University of Nevada, Reno (UNR)--Manzanita Lake2
2019-12-06 11:33Rancho San Rafael Park2
2019-11-28 10:34Rancho San Rafael Park--Dog Park and South Park areas3
2019-12-08 14:17Virginia Lake5
2019-12-09 11:02Idlewild Park7
2019-12-09 11:49Oxbow Nature Study Area1
2019-11-27 08:29Caughlin Parkway Trail
2019-12-09 09:16Dorostkar Park1
2019-12-09 08:47Mayberry Park3
2019-12-06 11:45Davis Creek Regional Park4
2019-11-28 13:05Eagle Lake--Stones Landing4
2019-12-07 10:41Spaulding Rd. sewage ponds6
2019-12-05 11:42Spooner Lake State Park3
2019-12-09 13:30Moore Park6
2019-12-06 11:53Grizzly Creek Ranch19
2019-12-02 12:40Lake Davis--Coot Bay3
2019-11-30 08:51Tahoe Marsh--via San Francisco Ave.4
2019-12-04 12:08Yuba Pass20
2019-12-05 12:00Quincy Sewage Treatment Ponds4
2019-12-08 15:10Leonhardt Ranch--Learning Landscapes site4
2019-12-10 14:09American Valley--Dillinger Pond3
2019-12-06 07:21Leoni Meadows8
2019-12-09 14:00Sisson Meadow2
2019-12-05 07:50Mautino Park1
2019-11-29 13:45Larry Wehmeyer Environmental Education Area1
2019-12-04 11:30Condon Park4
2019-12-08 08:00Arcata Marsh and Wildlife Sanctuary1