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Haftorn, Svein (). „Storage of Surplus Food by the Boreal Chickadee Paris hudsonicus in Alaska, with some records on the mountain chickadee parts gamble in Colorado”. Ornis Scandinavica. 5: 145–161. doi:10.2307/3676058. JSTOR3676058.
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ncbi.nlm.nih.gov
Johansson, Ulf S.; Ekman, Jan; Bowie, Rauri C. K.; Halvarsson, Peter; Ohlson, Jan I.; Price, Trevor D.; Ericson, Per G. P. (). „A complete multilocus species phylogeny of the tits and chickadees (Aves: Paridae)”. Molecular Phylogenetics and Evolution. 69 (3): 852–860. doi:10.1016/j.ympev.2013.06.019. PMID23831453.
Tritsch, Christian; Martens, Jochen; Sun, Yue-Hua; Heim, Wieland; Strutzenberger, Patrick; Päckert, Martin (). „Improved sampling at the subspecies level solves a taxonomic dilemma – A case study of two enigmatic Chinese tit species (Aves, Passeriformes, Paridae, Poecile)”. Molecular Phylogenetics and Evolution. 107: 538–550. doi:10.1016/j.ympev.2016.12.014. PMID27965081.