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1

Snell, Cara L., Stefanie E. LaZerte, Matthew W. Reudink, and Ken A. Otter. "Sympatric song variant in mountain chickadees Poecile gambeli does not reduce aggression from black-capped chickadees Poecile atricapillus." European Journal of Ecology 2, no. 1 (2016): 53–59. http://dx.doi.org/10.1515/eje-2016-0006.

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Abstract When habitats overlap and species compete for resources, negative interactions frequently occur. Character displacement in the form of behavioural, social or morphological divergences between closely related species can act to reduce negative interactions and often arise in regions of geographic overlap. Mountain chickadees Poecile gambeli have an altered song structure in regions of geographic overlap with the behaviourally dominant black-capped chickadee Poecile atricapillus. Similar to European and Asian tits, altered song in mountain chickadees may decrease aggression from black-c
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2

Bloomfield, Laurie L., Leslie S. Phillmore, Ronald G. Weisman, and Christopher B. Sturdy. "Note types and coding in parid vocalizations. III: The chick-a-dee call of the Carolina chickadee (Poecile carolinensis)." Canadian Journal of Zoology 83, no. 6 (2005): 820–33. http://dx.doi.org/10.1139/z05-067.

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Species of the genus Poecile Kaup, 1829 (the chickadees) are well suited to comparative studies of acoustic communication because their songs and calls occur in similar contexts and are acoustically similar. Here we provide careful, reliable descriptions and spectrographic exemplars for seven note types observed in the chick-a-dee calls of the Carolina chickadee, Poecile carolinensis (Audubon, 1834). The note types include A, C, and D notes similar to those found in the chick-a-dee calls of the black-capped chickadee, Poecile atricapillus (L., 1766), a complex of three B-note subtypes (B1, B2,
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3

Reudink, Matthew W., Stephen G. Mech, Sean P. Mullen, and Robert L. Curry. "Structure and Dynamics of The Hybrid Zone Between Black-Capped Chickadee (Poecile Atricapillus) and Carolina Chickadee (P. Carolinensis) in Southeastern Pennsylvania." Auk 124, no. 2 (2007): 463–78. http://dx.doi.org/10.1093/auk/124.2.463.

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AbstractAnalysis of the structure and stability of a hybrid zone can serve as a starting point for examining mechanisms that influence spatial and evolutionary relationships between species. Recent studies of the hybrid zone between Black-capped Chickadee (Poecile atricapillus) and Carolina Chickadee (P. carolinensis) have suggested that genetic introgression is limited to a narrow zone, while also reinforcing the conclusion that the line of contact between these parapatrically distributed species is now shifting northward. We investigated the structure, position, and recent movement of the ch
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4

Mack, Andrew L., Frank B. Gill, Robert Colburn, and Christina Spolsky. "Mitochondrial DNA: A Source of Genetic Markers for Studies of Similar Passerine Bird Species." Auk 103, no. 4 (1986): 676–81. http://dx.doi.org/10.1093/auk/103.4.676.

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Abstract Restriction enzyme analyses of mitochondrial DNA (mtDNA) of the Black-capped Chickadee (Parus atricapillus), Carolina Chickadee (P. carolinensis), and Tufted Titmouse (P. bicolor) indicate substantial genetic divergence (p = 0.04-0.09). Eleven of 14 enzymes produced fragment patterns that distinguish the two chickadees, revealing a bounty of markers for studies of these sibling species.
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5

Brodin, Anders. "Hippocampal Volume Does not Correlate With Food-Hoarding Rates in The Black-Capped Chickadee (Poecile Atricapillus) and Willow Tit (Parus Montanus)." Auk 122, no. 3 (2005): 819–28. http://dx.doi.org/10.1093/auk/122.3.819.

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Abstract Food-hoarding birds use memory to relocate caches, and species that store thousands of scattered food items must have an extraordinary memory capacity to be able to relocate them. Because the hippocampus is important in the functioning of spatial memory, it is logical to assume that the amount of food stored should correlate with hippocampal volume. Previously, food-hoarding capacity has been used as the predictor variable for hippocampal volume. Using the opposite approach, I tested whether hippocampal volume can be used to predict the amount of food stored. The atricapilla complex,
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6

Fotheringham, James R., and Laurene Ratcliffe. "Song degradation and estimation of acoustic distance in Black-capped Chickadees (Parus atricapillus)." Canadian Journal of Zoology 73, no. 5 (1995): 858–68. http://dx.doi.org/10.1139/z95-101.

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Black-capped Chickadees (Parus atricapillus) sing a two-note song termed fee bee. Frequency descends within the fee note and between the fee and bee notes. Within-song frequency ratios are highly invariant, while among songs, absolute frequency is variable. We conducted sound-transmission studies to analyze how Black-capped Chickadee songs degrade in different native habitats. We then subjected colour-banded territorial males to playback of undegraded and degraded songs to see if they could estimate the distance to a conspecific singer by means of degradation cues. In transmission studies cond
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7

Lait, Linda A., Randy F. Lauff, and Theresa M. Burg. "Genetic Evidence Supports Boreal Chickadee (Poecile hudsonicus) × Black-capped Chickadee (Poecile atricapillus) Hybridization in Atlantic Canada." Canadian Field-Naturalist 126, no. 2 (2012): 143. http://dx.doi.org/10.22621/cfn.v126i2.1330.

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Both morphological and genetic evidence support a hybridization event between a Boreal Chickadee (Poecile hudsonicus) and a Black-capped Chickadee (Poecile atricapillus) in Atlantic Canada. Plumage of the hybrid was intermediate to both parental species, with buffy sides and a dark brown cap on the head. Mitochondrial DNA control region showed the female lineage to be from a Boreal Chickadee, while Z-linked markers showed mixed Boreal Chickadee × Black-capped Chickadee heritage, likely representing an F1 hybrid. This is the first documented case of hybridization between these species in easter
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8

Proppe, D. S., K. A. Byers, C. B. Sturdy, and C. C. St. Clair. "Physical condition of Black-capped Chickadees (Poecile atricapillus) in relation to road disturbance." Canadian Journal of Zoology 91, no. 11 (2013): 842–45. http://dx.doi.org/10.1139/cjz-2013-0081.

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Roads and their associated low-frequency noise have been linked with a reduction in abundance and density for many songbird species. However, a handful of species remain equally abundant in roadside habitats and nondisturbed areas. Abundance is a valuable baseline indicator of a species’ ability to adapt to habitats altered by roads, but does not directly ascertain whether health is affected in these species. Here we examine whether Black-capped Chickadees (Poecile atricapillus (L., 1766)), a species that remains abundant near roads, exhibit higher levels of chronic stress or reduced physical
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9

Ingolfsson, Vala, Carolina Montenegro, William D. Service, and Christopher B. Sturdy. "Manual versus automatic identification of black-capped chickadee (Poecile atricapillus) vocalizations." Alberta Academic Review 2, no. 2 (2019): 41–42. http://dx.doi.org/10.29173/aar48.

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One time-consuming aspect of bioacoustic research is identifying vocalizations from long audio recordings. SongScope (version 4.1.5. Wildlife Acoustics, Inc.) is a computer program capable of developing acoustic recognizers that can identify wildlife vocalizations. The goal of the current study was to compare the effectiveness of manual identification of black-capped chickadee vocalizations to identification by SongScope recognizers. A recognizer was developed for each main chickadee vocalization by providing previously annotated audio of chickadees. Six chickadees (three male, three female) w
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10

Bronson, C. L., Thomas C. Grubb, Gene D. Sattler, and Michael J. Braun. "Reproductive Success Across The Black-Capped Chickadee (Poecile Atricapillus) and Carolina Chickadee (P. Carolinensis) Hybrid Zone in Ohio." Auk 122, no. 3 (2005): 759–72. http://dx.doi.org/10.1093/auk/122.3.759.

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AbstractBlack-capped Chickadees (Poecile atricapillus) and Carolina Chickadees (P. carolinensis) hybridize in an east-west band from New Jersey to Kansas. Within the past century, the Ohio portion of this hybrid zone and the Carolina Chickadee range to the south have been moving northward, whereas the Black-capped Chickadee range has retracted. In Ohio, we characterized the genetic composition of the hybrid zone using five diagnostic molecular loci. Although there was no evidence of assortative mating in the center of the hybrid zone, we found a relative paucity of genetically intermediate bre
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11

Baker, Myron Charles, Eric Stone, Ann Eileen Miller Baker, Robert J. Shelden, Patricia Skillicorn, and Mark D. Mantych. "Evidence Against Observational Learning in Storage and Recovery of Seeds by Black-Capped Chickadees." Auk 105, no. 3 (1988): 492–97. http://dx.doi.org/10.1093/auk/105.3.492.

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Abstract Recovery of cached sunflower seeds by Black-capped Chickadees (Parus atricapillus) was observed in four laboratory experiments. Results of the first experiment were consistent with the hypothesis that chickadees use spatial memory to recover seeds cached 24 h earlier. The second experiment demonstrated that individuals have a high recovery rate for their own caches and a low recovery rate for caches made by another. The third and fourth experiments demonstrated that one chickadee observing another caching seeds provided no recovery benefit to the observer in comparison to its performa
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12

Hindley, J., B. A. Graham, and T. M. Burg. "Pleistocene glacial cycles and physical barriers influence phylogeographic structure in Black-capped Chickadees (Poecile atricapillus), a widespread North American passerine." Canadian Journal of Zoology 96, no. 12 (2018): 1366–77. http://dx.doi.org/10.1139/cjz-2018-0013.

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The nonmigratory Black-capped Chickadee (Poecile atricapillus (Linnaeus, 1766)) has a continent-wide distribution extending across large parts of North America. To investigate the phylogeographic structure and verify possible refugia during the last glacial maximum, we sequenced a 678 bp region of the mitochondrial control region from 633 Black-capped Chickadees at 35 sites across North America and performed paleoecological distribution modeling. Two genetically distinct groups were found using multiple analyses: one in Newfoundland (Canada) and a widespread continental group, with additional
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13

Otter, Ken, Laurene Ratcliffe, and Peter T. Boag. "Extra-Pair Paternity in the Black-Capped Chickadee." Condor 96, no. 1 (1994): 218–22. http://dx.doi.org/10.2307/1369083.

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14

Sturdy, Christopher B. "Seemingly simple songs: Black-capped chickadee song revisited." Journal of the Acoustical Society of America 138, no. 3 (2015): 1879. http://dx.doi.org/10.1121/1.4933895.

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15

Loery, Gordon, and James D. Nichols. "Dynamics of a Black-capped Chickadee Population, 1958-1983." Ecology 66, no. 4 (1985): 1195–203. http://dx.doi.org/10.2307/1939172.

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16

GAMMON, DAVID E. "BLACK-CAPPED CHICKADEE DAWN CHORUS AND SUBSEQUENT SEXUAL ACTIVITY." Wilson Bulletin 116, no. 3 (2004): 252–56. http://dx.doi.org/10.1676/04-009.

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17

TOZER, DOUGLAS C., and MARTHA L. ALLEN. "Adult Gray Jay Captures an Adult Black-capped Chickadee." Wilson Bulletin 116, no. 4 (2004): 357–59. http://dx.doi.org/10.1676/04-030.

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18

Cooper, Sheldon J., and David L. Swanson. "Seasonal Acclimatization of Thermoregulation in the Black-Capped Chickadee." Condor 96, no. 3 (1994): 638–46. http://dx.doi.org/10.2307/1369467.

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19

Foote, Jennifer, Laurene Ratcliffe, Daniel Mennill, and Lauren Fitzsimmons. "Black-capped chickadee dawn choruses are interactive communication networks." Behaviour 147, no. 10 (2010): 1219–48. http://dx.doi.org/10.1163/000579510x513761.

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20

Charrier, Isabelle, Laurie L. Bloomfield, and Christopher B. Sturdy. "Note types and coding in parid vocalizations. I: The chick-a-dee call of the black-capped chickadee (Poecile atricapillus)." Canadian Journal of Zoology 82, no. 5 (2004): 769–79. http://dx.doi.org/10.1139/z04-045.

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The chick-a-dee call of the black-capped chickadee, Poecile atricapillus (L., 1766), consists of four note types and is used in a wide variety of contexts including mild alarm, contact between mates, and for mobilizing members of winter flocks. Because note-type composition varies with context and because birds need to identify flock mates and individuals by their calls, it is important that birds are able to discriminate between note types and birds. Moreover, previous experiments have shown that black-capped chickadees are able to discriminate their four note types, but the acoustical basis
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21

Kroodsma, Donald E., Bruce E. Byers, Christopher Hill, et al. "Geographic Variation in Black-Capped Chickadee Songs and Singing Behavior." Auk 116, no. 2 (1999): 387–402. http://dx.doi.org/10.2307/4089373.

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22

Smith, Susan M. "The Single Wing-Flick Display of the Black-Capped Chickadee." Condor 98, no. 4 (1996): 885–87. http://dx.doi.org/10.2307/1369879.

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23

Ratcliffe, Laurene, and Ronald G. Weisman. "Song sequence discrimination in the black-capped chickadee (Parus atricapillus)." Journal of Comparative Psychology 100, no. 4 (1986): 361–67. http://dx.doi.org/10.1037/0735-7036.100.4.361.

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24

Hansen, Ingebjørg Jean K., Ken A. Otter, Harry van Oort, and Carmen I. Holschuh. "Communication breakdown? Habitat influences on black-capped chickadee dawn choruses." acta ethologica 8, no. 2 (2005): 111–20. http://dx.doi.org/10.1007/s10211-005-0007-x.

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25

MIYASATO, LORI E., and MYRON C. BAKER. "Black-capped chickadee call dialects along a continuous habitat corridor." Animal Behaviour 57, no. 6 (1999): 1311–18. http://dx.doi.org/10.1006/anbe.1999.1109.

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26

Hahn, Allison H., Lauren M. Guillette, Marisa Hoeschele, et al. "Dominance and geographic information contained within black-capped chickadee (Poecile atricapillus) song." Behaviour 150, no. 13 (2013): 1601–22. http://dx.doi.org/10.1163/1568539x-00003111.

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In songbirds, male song is an acoustic signal used to attract mates and defend territories. Typically, song is an acoustically complex signal; however, the fee-bee song of the black-capped chickadee is relatively simple. Despite this relative simplicity, two previous studies (Christie et al., 2004b; Hoeschele et al., 2010) found acoustic features within the fee-bee song that contain information regarding an individual’s dominance rank; however each of these studies reported a different dominance-related acoustic cue. Specifically, the relative amplitude of the two notes differed between the so
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27

Oort, Harry van, and Ken A. Otter. "Natal nutrition and the habitat distributions of male and female black-capped chickadees." Canadian Journal of Zoology 83, no. 11 (2005): 1495–501. http://dx.doi.org/10.1139/z05-147.

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In nonmigratory passerines, dispersing juveniles may compete to settle in suitable habitat patches, leading to phenotypic assortment across habitat types. We compared the past natal nutrition of 1st year black-capped chickadees (Poecile atricapillus (L., 1766)) that settled in two adjacent patches known to differ in suitability as breeding habitat: a mature mixed forest (good habitat) versus a young regenerating forest dominated by conifers (poor habitat). The past natal nutrition of recruits was estimated by measuring growth bars on their tail feathers grown as nestlings; growth bars were pos
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Hoeschele, Marisa, Robert G. Cook, Lauren M. Guillette, Daniel I. Brooks, and Christopher B. Sturdy. "Black-capped chickadee (Poecile atricapillus) and human (Homo sapiens) chord discrimination." Journal of Comparative Psychology 126, no. 1 (2012): 57–67. http://dx.doi.org/10.1037/a0024627.

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29

Hitchcock, Christine L., and David F. Sherry. "Long-term memory for cache sites in the black-capped chickadee." Animal Behaviour 40, no. 4 (1990): 701–12. http://dx.doi.org/10.1016/s0003-3472(05)80699-2.

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Roach, Sean P., Daniel J. Mennill, and Leslie S. Phillmore. "Operant discrimination of relative frequency ratios in black-capped chickadee song." Animal Cognition 20, no. 5 (2017): 961–73. http://dx.doi.org/10.1007/s10071-017-1115-5.

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Guillette, Lauren M., Adam R. Reddon, Marisa Hoeschele, and Christopher B. Sturdy. "Sometimes slower is better: slow-exploring birds are more sensitive to changes in a vocal discrimination task." Proceedings of the Royal Society B: Biological Sciences 278, no. 1706 (2010): 767–73. http://dx.doi.org/10.1098/rspb.2010.1669.

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Animal personality, defined as consistent individual differences across context and time, has attracted much recent research interest in the study of animal behaviour. More recently, this field has begun to examine how such variation arose and is maintained within populations. The habitat-dependent selection hypothesis, which posits that animals with differing personality types may fare better (i.e. have a fitness advantage) in different habitats, suggests one possible mechanism. In the current experiment, we tested whether slow- and fast-exploring black-capped chickadees ( Poecile atricapillu
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McCallum, D. Archibald. "A User's Guide to Chickadees The Black-Capped Chickadee. Behavioral Ecology and Natural History Susan M. Smith." Condor 96, no. 1 (1994): 247–49. http://dx.doi.org/10.2307/1369091.

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Nip, Emma J., Barbara Frei, and Kyle H. Elliott. "Seasonal and temporal variation in scaled mass index of Black-capped Chickadees (Poecile atricapillus)." Canadian Field-Naturalist 132, no. 4 (2019): 368–77. http://dx.doi.org/10.22621/cfn.v132i4.2015.

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Avian body mass reflects a trade-off between risk of starvation and predation, and may vary with ambient temperature, age, and time of day. Seasonal variability in body mass is a common occurrence in northern temperate regions, including adaptive fattening. Previous evidence suggests that seasonal variability is less pronounced in tree-feeding bird species, as their food sources during winter are less limited and variable compared to ground-foraging species. We determined fat scores of tree-feeding Black-capped Chickadees (Poecile atricapillus) captured year-round between 2004 and 2015 (n = 42
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34

Christie, Peter, Daniel Mennill, and Laurene Ratcliffe. "Chickadee Song Structure is Individually Distinctive Over Long Broadcast Distances." Behaviour 141, no. 1 (2004): 101–24. http://dx.doi.org/10.1163/156853904772746628.

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AbstractThe two-note fee-bee song of male black-capped chickadees functions during the dawn chorus, in part, as a sexual signal across large distances. How song structure might encode information about male quality, however, remains unclear. We studied the availability of cues to male social rank (a proxy indicator of male quality), within the acoustic structure of dawn chorus songs of male chickadees whose flock dominance status we determined the previous winter. We used analysis of variance and discriminant function analysis to demonstrate that five temporal, frequency or relative amplitude
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35

Ratcliffe, Laurene, and Ronald G. Weisman. "Frequency Shift in the Fee Bee Song of the Black-Capped Chickadee." Condor 87, no. 4 (1985): 555–56. http://dx.doi.org/10.2307/1367963.

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36

Smith, Susan M. "Social Influences on the Dynamics of a Northeastern Black-Capped Chickadee Population." Ecology 75, no. 7 (1994): 2043–51. http://dx.doi.org/10.2307/1941609.

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37

Gammon, David E., Myron C. Baker, and John R. Tipton. "CULTURAL DIVERGENCE WITHIN NOVEL SONG IN THE BLACK-CAPPED CHICKADEE (POECILE ATRICAPILLUS)." Auk 122, no. 3 (2005): 853. http://dx.doi.org/10.1642/0004-8038(2005)122[0853:cdwnsi]2.0.co;2.

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38

Hof, David, and Nicole Hazlett. "Mortal combat: an apparent intraspecific killing by a male Black-capped Chickadee." Journal of Field Ornithology 83, no. 3 (2012): 290–94. http://dx.doi.org/10.1111/j.1557-9263.2012.00377.x.

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39

Kobrina, Anastasiya, Allison H. Hahn, Eduardo Mercado, and Christopher B. Sturdy. "Sex-differences in timing of the black-capped chickadee fee-bee song." Journal of the Acoustical Society of America 145, no. 3 (2019): 1807. http://dx.doi.org/10.1121/1.5101619.

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40

Gammon, David E., Myron C. Baker, and John R. Tipton. "Cultural Divergence Within Novel Song in The Black-Capped Chickadee (Poecile Atricapillus)." Auk 122, no. 3 (2005): 853–71. http://dx.doi.org/10.1093/auk/122.3.853.

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Abstract Geographic variation in learned vocalizations is commonly attributed, in part, to imperfect song learning, but rarely has this been documented. Additionally, we know little about how spatial structure of populations affects geographic divergence in song. Using novel fee-bee song in Black-capped Chickadees (Poecile atricapillus) in Fort Collins, Colorado, we investigated both of those concepts by recording songs from juveniles at the time of natal dispersal and from adults at study sites along a continuous riparian corridor and in small isolated populations north of Fort Collins. Acous
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Smith, David C., and Joseph Van Buskirk. "Winter territoriality and flock cohesion in the black-capped chickadee Parus atricapillus." Animal Behaviour 36, no. 2 (1988): 466–76. http://dx.doi.org/10.1016/s0003-3472(88)80017-4.

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42

Avey, Marc T., Aaron F. Quince, and Christopher B. Sturdy. "Seasonal and diurnal patterns of black-capped chickadee (Poecile atricapillus) vocal production." Behavioural Processes 77, no. 2 (2008): 149–55. http://dx.doi.org/10.1016/j.beproc.2007.12.004.

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43

Nickerson, Carly M., Laurie L. Bloomfield, Michael R. W. Dawson, and Christopher B. Sturdy. "Artificial neural network discrimination of black-capped chickadee (Poecile atricapillus) call notes." Journal of the Acoustical Society of America 120, no. 2 (2006): 1111–17. http://dx.doi.org/10.1121/1.2211509.

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44

Bronson, C. L., Thomas C. Grubb, Gene D. Sattler, and Michael J. Braun. "REPRODUCTIVE SUCCESS ACROSS THE BLACK-CAPPED CHICKADEE (POECILE ATRICAPILLUS) AND CAROLINA CHICKADEE (P. CAROLINENSIS) HYBRID ZONE IN OHIO." Auk 122, no. 3 (2005): 759. http://dx.doi.org/10.1642/0004-8038(2005)122[0759:rsatbc]2.0.co;2.

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Longmoor, Georgia K., C. Henrik Lange, Hannah Darvell, et al. "Different Seasonal Patterns in Song System Volume in Willow Tits and Great Tits." Brain, Behavior and Evolution 87, no. 4 (2016): 265–74. http://dx.doi.org/10.1159/000447114.

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In most species of seasonally breeding songbirds studied to date, the brain areas that control singing (i.e. the song control system, SCS) are larger during the breeding season than at other times of the year. In the family of titmice and chickadees (Paridae), one species, the blue tit (Cyanistes caeruleus), shows the typical pattern of seasonal changes, while another species, the black-capped chickadee (Poecile atricapillus), shows, at best, very reduced seasonal changes in the SCS. To test whether this pattern holds up in the two Parid lineages to which these two species belong, and to rule
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46

Loery, Gordon, Kenneth H. Pollock, James D. Nichols, and James E. Hines. "Age-Specificity of Black-Capped Chickadee Survival Rates: Analysis of Capture-Recapture Data." Ecology 68, no. 4 (1987): 1038–44. http://dx.doi.org/10.2307/1938375.

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47

Weisman, Ron, Laurene Ratcliffe, Ingrid Johnsrude, and T. Andrew Hurly. "Absolute and Relative Pitch Production in the Song of the Black-Capped Chickadee." Condor 92, no. 1 (1990): 118–24. http://dx.doi.org/10.2307/1368390.

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48

Ficken, Millicent S., Charles M. Weise, and James A. Reinartz. "A Complex Vocalization of the Black-Capped Chickadee. II. Repertoires, Dominance and Dialects." Condor 89, no. 3 (1987): 500. http://dx.doi.org/10.2307/1368640.

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Ficken, Millicent S., and Robert W. Ficken. "Dialects in a Call Associated with Pair Interactions in the Black-Capped Chickadee." Auk 102, no. 1 (1985): 145–51. http://dx.doi.org/10.2307/4086830.

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Ficken, Millicent Sigler, and James W. Popp. "Syntactical Organization of the Gargle Vocalization of the Black-capped Chickadee, Parus atricapillus." Ethology 91, no. 2 (2010): 156–68. http://dx.doi.org/10.1111/j.1439-0310.1992.tb00860.x.

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