Black-capped Chickadee
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| Black-capped Chickadee | |
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| Name | Black-capped Chickadee |
| Status | LC |
| Status system | IUCN3.1 |
| Genus | Poecile |
| Species | atricapillus |
| Authority | (Linnaeus, 1766) |
Black-capped Chickadee The Black-capped Chickadee is a small North American songbird notable for its black cap and bib and long presence in ornithological study. It occupies boreal and temperate forests and has been the subject of research by institutions such as the Smithsonian Institution, the Cornell Lab of Ornithology, the Royal Ontario Museum, the American Ornithological Society and the Canadian Wildlife Service.
Taxonomy and Systematics
The species was described by Carl Linnaeus and placed historically within works of John James Audubon, later revised by researchers at the British Museum and reassessed in molecular studies involving laboratories at Harvard University, the University of California, Berkeley, the University of Michigan, the University of British Columbia and the Field Museum of Natural History. Phylogenetic analyses using mitochondrial and nuclear DNA compared Black-capped Chickadee relationships with taxa treated by the American Museum of Natural History, the Natural History Museum, London, the Max Planck Society and the Smithsonian Institution’s National Museum of Natural History, clarifying affinities within the genus Poecile alongside taxa recognized by the International Ornithologists' Union and the American Ornithological Society checklist committees.
Description
Adult plumage was documented in plates by John James Audubon and later standardized by guides from the Royal Ontario Museum, the Cornell Lab of Ornithology, the National Audubon Society and the American Birding Association. Field measurements and morphometrics reported by researchers at the Smithsonian Institution, the National Geographic Society, the Canadian Wildlife Service and the United States Geological Survey show body mass, wing chord and bill length consistent across northern populations studied by teams from the University of Alaska Fairbanks, the University of Minnesota and the University of Toronto.
Distribution and Habitat
Range mapping has been published through collaborative projects involving the Cornell Lab of Ornithology, the Audubon Society, the United States Fish and Wildlife Service, the Canadian Wildlife Service, the Bird Studies Canada program and the eBird platform hosted by the Smithsonian Institution and Cornell Lab of Ornithology. The species occupies habitats surveyed by the National Park Service, the Canadian Parks Service, the Yukon Department of Environment and provincial agencies in Ontario, Quebec and British Columbia, extending into states monitored by the U.S. Fish and Wildlife Service and regional programs in Alaska, Maine and Minnesota.
Behavior and Ecology
Behavioral ecology has been explored in studies funded by organizations such as the National Science Foundation, the Natural Sciences and Engineering Research Council of Canada, the Royal Society and universities including the University of British Columbia, the University of Calgary and McGill University. Research on winter caching, social organization and predator avoidance references work from the Cornell Lab of Ornithology, the Yale School of Forestry & Environmental Studies, the University of Washington and conservation programs run by the Nature Conservancy and BirdLife International.
Diet and Foraging
Dietary studies published in journals supported by the National Institutes of Health, the National Science Foundation and the Canadian Institutes of Health Research describe insectivory and seed consumption documented by field teams from the Smithsonian Institution, the Canadian Wildlife Service, the Royal Ontario Museum and the Cornell Lab of Ornithology. Foraging behaviors observed in urban and rural settings involve habitat interactions recorded by the U.S. Forest Service, the British Columbia Ministry of Environment, the Ontario Ministry of Natural Resources and volunteer groups coordinated by the Audubon Society and Bird Studies Canada.
Reproduction and Lifespan
Nesting biology, clutch size and survivorship were quantified in longitudinal studies undertaken by researchers at the University of Minnesota, the University of Alberta, the Cornell Lab of Ornithology, the Smithsonian Institution and the Royal Ontario Museum. Demographic analyses using banding data from the United States Geological Survey, the Canadian Bird Banding Office and the British Trust for Ornithology inform life-history parameters compared across populations monitored in Alaska, Ontario, Manitoba and Quebec.
Vocalizations and Communication
Acoustic research has been conducted with equipment and analysis methods developed at the Cornell Lab of Ornithology, the Smithsonian Institution, the University of California, Davis, the Massachusetts Institute of Technology and the Max Planck Institute for Ornithology. Studies on alarm calls, contact calls and song dialects reference datasets maintained by the Macaulay Library, the eBird platform, the British Library Sound Archive and university labs at McGill University and the University of British Columbia.