Refereed Journal Publications 1. Congdon, J. V., Hahn, A. H., Campbell, K. A., Scully, E. N., Mischler, S. K., Montenegro, C., Service, W. D. & Sturdy, C. B. (2022). Discrimination of high- and low-threat vocalizations: An examination of referential communication in black-capped chickadee (Poecile atricapillus) mobbing calls. Animal Behavior and Cognition, 9, 298-315.
2. Congdon, J. V., Hosseini, M., Gading, E. F., Masousi, M., Franke, M., & MacDonald, S. E. (2022). The future of artificial intelligence in monitoring animal identification, health, and behaviour. Animals, 12, 1711.
3. Campbell, K. A., Hahn, A. H., Congdon, J. V., Scully, E. N., & Sturdy, C. B. (2020). Perception of sex differences in black-capped chickadee (Poecile atricapillus) chick-a-dee calls. Animal Behavior and Cognition, 7, 514-530.
4. Congdon, J. V., Hahn, A. H., Campbell, K. A., Scully, E. N., Yip, D. A., Bayne, E. M., & Sturdy, C. B. (2020). Can you hear me now? The effect of signal degradation on perceived predator threat in black-capped chickadees. Animal Cognition, 1-12.
5. Scully, E. N., Campbell, K. A., Congdon, J. V., & Sturdy, C. B. (2020). Discrimination of black-capped chickadee (Poecile atricapillus) chick-a-dee calls produced across seasons. Animal Behavior and Cognition, 7, 247-256.
6. Congdon, J. V., Hahn, A. H., Campbell, K. A., Scully, E. N., Yip, D. A., Bayne, E. M., & Sturdy, C. B. (2020). Acoustic discrimination of predators by black-capped chickadees (Poecile atricapillus). Animal Cognition, 1-17.
7. Freas, C. A., Congdon, J. V., Plowes, N. J. R., & Spetch, M. L. (2020). Pheromone cue triggers switch between vectors in the desert harvest ant, Veromessor pergandei. Animal Cognition, 1-19.
8. Freas, C. A., Congdon, J. V., Plowes, N. J. R., & Spetch, M. L. (2019). Same but different: Socially foraging ants backtrack like individually foraging ants but use different mechanisms. Journal of Insect Physiology, 118, 103944.
9. Congdon, J. V., Hahn, A. H.†, Filippi, P.†, Campbell, K. A.†, Hoang, J., Scully, E. N., Bowling, D. L., Reber, S. A., & Sturdy, C. B. (2019). Hear them roar: A comparison of black-capped chickadee (Poecile atricapillus) and human (Homo sapiens) perception of arousal in vocalizations across all classes of terrestrial vertebrates. Journal of Comparative Psychology, http://dx.doi.org/10.1037/com0000187. 10. Sturdy, C. B. & Congdon, J. V. (2019). Sometimes a stick might just be a stick. Learning & Behavior (LB-COM-19-020).
11. Campbell, K. A., Proppe, D. S., Congdon, J. V., Scully, E. N., Mischler, S. K., & Sturdy, C. B. (2018). The effects of anthropogenic noise on feeding behaviour in black-capped chickdaees (Poecile atricapillus). Behavioural Processes, 158, 53-58.
12. Plowes, N., Du, Y., Congdon, J. V., Bulitko, V., Soares, E. S., & Spetch, M. L. (2018). Odometry and backtracking: Social and individual navigation in group foraging desert harvester ants (Veromessor pergandei). Animal Cognition, 1-3.
13. Scully, E. N., Schuldhaus, B. C., Congdon, J. V., Hahn, A. H., Campbell, K. A., Wilson, D. R., & Sturdy, C. B. (2018). ZENK expression in the auditory pathway of black-capped chickadees (Poecile atricapillus) as a function of D note number and duty cycle of chick-a-dee calls. Behavioural Brain Research, 356, 490-494.
14. Filippi, P., Congdon, J. V., Hoang, J., Bowling, D., Reber, S., Pasukonis, A., Hoeschele, M., Ocklenburg, S., de Boer, B., Sturdy, C. B., Newen, A., & Güntürkün, O. (2017). Humans recognize emotional arousal in vocalizations across all classes of terrestrial vertebrates: Evidence for acoustic universals. Proceedings of the Royal Society B, 284, 1-9.
15. Scully, E. N., Hahn, A. H., Campbell, K. A., McMillan, N., Congdon, J. V., & Sturdy, C. B. (2017). ZENK expression following conspecific and heterospecific playback in the zebra finch auditory forebrain. Behavioural Brain Research, 331, 151-158.
16. Hahn, A. H., Campbell, K. A., Congdon, J. V., Hoang, J., McMillan, N., Scully, E., Yong, J. J. H., Elie, J. E., & Sturdy, C. B. (2017). Discrimination of acoustically similar conspecific and heterospecific vocalizations by black-capped chickadees (Poecile atricapillus). Animal Cognition, 20, 639-654.
17. McMillan, N., Hahn, A. H., Congdon, J. V., Campbell, K. A., Hoang, J., Scully, E. N., Spetch, M. L., & Sturdy, C. B. (2017). Chickadees discriminate contingency reversals presented consistently, but not frequently. Animal Cognition, 1-9.
18. Sturdy, C. B., Campbell, K. A., Congdon, J. V., Hahn, A. H., McMillan, N., & Scully, E. N. (2017). Moving from perceptual to functional categories in songbirds. International Journal of Comparative Psychology, 30, 1-14.
19. *Congdon, J. V., Hahn, A. H., McMillan, N., Avey, M. T., & Sturdy, C. B. (2016). Chickadee behavioural response to varying threat levels of predator and conspecific calls. International Journal of Comparative Psychology, 29, 1-19. *Received the "University of Alberta, Department of Psychology, Graduate Research Award 2016" – Awarded annually for the best publication. 20. Campbell, K. A., Hahn, A. H., Congdon, J. V., & Sturdy, C. B. (2016). Sex differences in black-capped chickadee (Poecile atricapillus) chick-a-dee calls. The Journal of the Acoustical Society of America, 140, 1598-1608.
21. Proppe, D. S., McMillan, N., Congdon, J. V., & Sturdy, C. B. (2016). Mitigating road impacts on animals through learning principles. Animal Cognition, 1-13.
22. Hahn, A. H., Hoeschele, M., Guillette, L. M., Hoang, J., McMillan, N., Congdon, J. V., Campbell, K. A., Mennill, D. J., Otter, K. A., Grava, T., Ratcliffe, L. M., & Sturdy, C. B. (2016). Black-capped chickadees categorize songs based on features that vary geographically. Animal Behaviour, 112, 93-104.
23. Hahn, A. H., Hoang, J., McMillan, N., Campbell, K., Congdon, J., & Sturdy, C. B. (2015). Biological salience influences performance and acoustic mechanisms for the discrimination of male and female songs. Animal Behaviour, 104, 213-228.
Refereed Book Chapters 24. Hahn, A. H., Congdon, J. V., Campbell, K. A., Scully, E. N., McMillan, N., & Sturdy, C. B. (2017). Mechanisms of communication and cognition in chickadees: Explaining nature in the lab and field. In M. Naguib, J., Podos, L. W., Simmons, L., Barrett, S., Healy, & M. Zuk (Eds.), Advances in the Study of Behavior, 49 (Chapter 5, pp. 147-197).
Non-refereed Publications 25. *Mischler, S. K., Congdon, J. V., Scully, E. N., Campbell, K. A., & Sturdy, C. B. (2017). Passerine vocal communication. Encyclopedia of Animal Cognition and Behavior, 1-7. *This work was an invited submission.
Refereed Conference Presentations Congdon, J. V., Hosseini, M., Franke, M., & MacDonald, S. E. (2022). Artificial intelligence in monitoring animal identification, health, and behaviour. Poster, Toronto AAZK Conference (Toronto, ON) [International].
Congdon, J. V. (2022). Artificial intelligence in monitoring orangutan behaviour. Presentation, Canadian Society for Brain, Behaviour, and Cognitive Science's 32nd Annual Meeting (Halifax, NS) [International]. Congdon, J. V., Hahn, A. H., Campbell, K. A., & Sturdy, C. B. (2021). Can humans understand birds? An investigation of humans’ ability to categorize black-capped chickadee songs that vary in the sex and geography of the producer. Presentation, Conference on Comparative Cognition (CO3) [Virtual/International].
Campbell, K. A., Hoeschele, M., Mann, D., Congdon, J. V., Scully, E. N., Mischler, S. K., Montenegro, C., Service, W. D., & Sturdy, C. B. (2021). Preference for and discrimination of syntactically ordered or scrambled chick-a-dee calls in black-capped chickadees (Poecile atricapillus). Presentation, Conference on Comparative Cognition (CO3) [Virtual/International]. *Congdon, J. V., Hahn, A. H., Campbell, K. A., & Sturdy, C. B. (2020). Can humans understand birds? An investigation of humans’ ability to categorize black-capped chickadee songs that vary in the sex and geography of the producer. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International]. *paper accepted but not presented; conference cancelled due to COVID-19.
*Campbell, K. A., Hoeschele, M., Mann, D., Congdon, J. V., Scully, E. N., Mischler, S. K., Montenegro, C., Service, W. D., & Sturdy, C. B. (2020). Preference for and discrimination of syntactically ordered or scrambled chick-a-dee calls in black-capped chickadees (Poecile atricapillus). Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International]. *paper accepted but not presented; conference cancelled due to COVID-19. Congdon, J. V., Hahn, A. H., Campbell, K. A., Scully, E. N., Mischler, S. K., Montenegro, C., Service, W. D., & Sturdy, C. B. (2019). Referential communication in black-capped chickadee (Poecile atricapillus) mobbing calls. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Sturdy, C. B., Congdon, J. V., Hahn, A. H., Campbell, K. A., Scully, E. N., Yip, D. A., & Bayne, E. M. (2019). Categorization of predators by wingspan and body length in black-capped chickadees. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Campbell, K. A., Congdon, J. V., Scully, E. N., Hahn, A. H., & Sturdy, C. B. (2019). Do black-capped chickadees (Poecile atricapillus) discriminate between male- and female-produced chick-a-dee calls? Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Montenegro, C., Service, W. D., Campbell, K. A., Scully, E. N., Mischler, S. K., Congdon, J. V., & Sturdy, C. B. (2019). Behavioural responses to female song playback in black-capped chickadees (Poecile atricapillus). Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Freas, C. A., Congdon, J. V., Plowes, N. J. R., & Spetch, M. L. (2019). Celestial cue use in the socially foraging desert harvester ant, Veromessor pergandei. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Mischler, S.K., Campbell, K.A., Congdon, J.V., Montenegro, C., Scully, E.N., Service, W.D., Hahn, A.H., Mennill, D.J., Otter, K.A., & Sturdy, C. B. (2019). Differing levels of anthropogenic noise affects discrimination of conspecific fee-bee songs by black-capped chickadees (Poecile atricapillus). Poster, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Khandker, S. S., Congdon, J. V., Skurdal, A. M. M., Hahn, A. H., Aghazadeh, S., & Sturdy, C. B. (2019). Significance of the single-note ‘tseet’ call on threat perception in black-capped chickadees (Poecile atricapillus). Poster, 33rd Annual Joseph R. Royce Conference (Edmonton, AB) [Regional].
Aghazadeh, S., Congdon, J. V., Skurdal, A. M. M., Hahn, A. H., Khandker, S. S., & Sturdy, C. B. (2019). Black-capped chickadee vocal response to varying degrees of perceived threat. Poster, 33rd Annual Joseph R. Royce Conference (Edmonton, AB) [Regional].
ƚGhasoub, M., Montenegro, C., Service, W. D., Bhardwaj, G., Yip, D. A., Congdon, J. V., & Sturdy, C. B. (2019). The influence of anthropogenic noise and predator calls on behavior in black-capped chickadees chickadees (Poecile atricapillus). Poster, 33rd Annual Joseph R. Royce Conference (Edmonton, AB) [Regional]. ƚ Best student poster - winner of the Undergraduate Research Showcase 2019
Mischler, S. K., Campbell, K. A., Congdon, J. V., Montenegro, C., Scully, E. N., Service, W. D., Hahn, A. H., Mennill, D. J., Otter, K. A., & Sturdy, C. B. (2018). Anthropogenic noise affects discrimination of conspecific fee-bee songs by black-capped chickadees. Presentation, Fall Meeting of the Comparative Cognition Society (San Diego, CA) [International].
Congdon, J. V. (2018). Emotional perception in humans and birds. Invited speaker, International Conference on Language and Social Psychology (ICLASP16) (Edmonton, AB) [International].
Montenegro, C., Service, W. D., Campbell K. A., Scully, E. N., Mischler, S., Congdon, J. V., & Sturdy, C. B. (2018, April). Behavioural responses to female song playback in black-capped chickadees (Poecile atricapillus). Poster, 32nd Annual Joseph R. Royce Conference (Edmonton, AB) [Regional].
Service, W. D., Montenegro, C., Campbell, K. A., Scully, E. N., Congdon, J. V., & Sturdy, C. B. (2018). Black-capped chickadee (Poecile atricapillus) response to altered syntax fee-bee song. Poster, 32nd Annual Joseph R. Royce Conference (Edmonton, AB) [Regional].
Congdon, J. V., Hahn, A. H.*, Filippi, P.*, Hoang, J.*, Campbell, K. A., Scully, E. N., Bowling, D. L., Reber, S. A., & Sturdy, C. B. (2018). A comparison of black-capped chickadee and human perception of arousal in vocalizations across all classes of terrestrial vertebrates. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Sturdy, C. B., Congdon, J. V., Hahn, A. H., Yip, D. A., Campbell, K. A., Scully, E. N., & Bayne, E. M. (2018). Threat perception: Impact of degradation and anthropogenic noise. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Scully, E. N., Campbell, K. A., Congdon, J. V., & Sturdy, C. B. (2018). Discrimination of season in chick-a-dee calls. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International]. Congdon, J. V., Hahn, A. H., Yip, D. A., Campbell, K. A., Scully, E. N., Bayne, E. M., & Sturdy, C. B. (2017). An investigation of the effect of signal degradation on perceived predator threat. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Scully, E. N., Congdon, J. V., Hahn, A. H., Schuldhaus, B. C., Campbell, K. A., Wilson, D. R., Mennill, D. J., & Sturdy, C. B. (2017). ZENK expression in black-capped chickadees (Poecile atricapillus) as a function of D note number and duty cycle. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Campbell, K. A., Hahn, A. H., Congdon, J. V., Scully, E. N., & Sturdy, C. B. (2017). Ability to categorize sex of vocalizing birds may depend on vocalization type in black-capped chickadees (Poecile atricapillus). Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
ƚ Skurdal, A. M. M., Congdon, J. V., Hahn, A. H., Paszkowski, C. A., & Sturdy, C. B. (2017). Black-capped chickadee behavioural responses to mammalian and avian predators of varying threat levels. Poster, 31st Annual Joseph R. Royce Conference (Edmonton, AB) [Regional]. ƚBest student poster - winner of the Undergraduate Research Showcase 2017
Schuldhaus, B. C., Scully, E. N., Congdon, J. V., Hahn, A. H., Campbell, K. A., Wilson, D. R., Mennill, D. J., & Sturdy, C. B. (2017). The influence of varying D note number and duty cycle on ZENK expression in black-capped chickadees (Poecile atricapillus). Poster, 31st Annual Joseph R. Royce Conference (Edmonton, AB) [Regional]. Filippi, P., Congdon, J. V., Hoang, J., Bowling, D., Reber, S., Pasukonis, A., Hoeschele, M., Ocklenburg, S., de Boer, B., Sturdy, C. B., Newen, A., & Güntürkün, O. (2016). Humans recognize vocal expressions of emotional arousal in vocalizations across all classes of terrestrial vertebrates: Evidence for acoustic universals. Invited seminar, Marine Science Center (Rostock, Germany) [Institutional].
Filippi, P., Congdon, J. V., Hoang, J., Bowling, D., Reber, S., Pasukonis, A., Hoeschele, M., Ocklenburg, S., de Boer, B., Sturdy, C. B., Newen, A., & Güntürkün, O. (2016). Humans recognize vocal expressions of emotional states across all classes of terrestrial vertebrates: Evidence for acoustic universals. Presentation, 8th European Conference on Behavioral Biology (ECBB) (Vienna, Austria) [International].
Sturdy, C. B., Campbell, K. A., Congdon, J. V., Hahn, A. H., McMillan, N., & Scully, E. N. (2016). Category perception in songbirds: Moving from perceptual to functional. Invited seminar, Canadian Society for Brain, Behaviour and Cognitive Science (CSBBCS) 26th Annual Meeting (Ottawa, ON) [National].
Congdon, J. V., Hahn, A. H., McMillan, N., & Sturdy, C. B. (2016). Dissociation of treat level and behaviour: Differences between conspecific and heterospecific signals. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Sturdy, C. B., Hahn, A. H., Hoang, J., McMillan, N., Campbell, K. A., & Congdon, J. V. (2016). Biological salience influences song discrimination: Evidence from chickadees and neural networks. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Scully, E. N., Hahn, A. H., Campbell, K. A., McMillan, N., Congdon, J. V., & Sturdy, C. B. (2016). A re-examination of ZENK expression following hetero- and conspecific playback in the zebra finch auditory forebrain. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Campbell, K. A., Hahn, A. H., Congdon, J. V., & Sturdy, C. B. (2016). Are there sex differences in individual notes of black-capped chickadee chick-a-dee calls? Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Filippi, P., Congdon, J. V., Hoang, J., Bowling, D., Reber, S., Pasukonis, A., Hoeschele, M., Ocklenburg, S., de Boer, B., Sturdy, C. B., Newen, A., & Güntürkün, O. (2016). Humans recognize vocal expressions of emotional states universally across species. Poster, Evolution of Language International Conferences (New Orleans, LA) [International].
Intaprasert, T., Scully, E. N., Hahn, A. H., Campbell, K. A., McMillan, N., Congdon, J. V., & Sturdy, C. B. (2016). The effects of conspecific and heterospecific vocalizations on ZENK expression in the zebra finch (Taeniopygia guttata) auditory forebrain. Poster, 30th Annual Joseph R. Royce Conference (Edmonton, AB) [Regional].
Yang, N. K-H., Congdon, J. V., Hoang, J., Filippi, P., Bowling, D. L., Reber, S. A., Pašukonis, A., & Sturdy, C. B. (2016). Do cues make a difference in perception? An investigation of humans’ ability to differentiate arousal levels of animal vocalizations. Poster, 30th Annual Joseph R. Royce Conference (Edmonton, AB) [Regional].
Hahn, A. H., Yong, J. J. H., Campbell, K. A., Congdon, J. V., Hoang, J., McMillan, N., Scully, E. N., & Sturdy, C. B. (2015). Discrimination of conspecific and heterospecific call notes with acoustic similarity. Presentation, Fall Meeting of the Comparative Cognition Society (CCS) (Chicago, Illinois) [International].
Congdon, J. V., Hahn, A. H., McMillan, N., Avey, M. T., & Sturdy, C. B. (2015). Chickadee behavioural response to varying threat levels of predator and conspecific calls. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Campbell, K. A., Hahn, A. H., Congdon, J. V., & Sturdy, C. B. (2015). Sex-specific acoustic features contained in the black-capped chickadee (Poecile atricapillus) chick-a-dee call. Poster, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Hoang, J., Hahn, A. H., Hoeschele, M., Cervantes, D., McMillan, N., Congdon, J. V., Campbell, K. A., Weisman, R. G., & Sturdy, C. B. (2015). Intra- and inter-octave tests of human and black-capped chickadee octave perception. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
McMillan, N., Spetch, M. L., Pisklak, J. M., Hahn, A. H., Hoang, J., Congdon, J. V., Campbell, K. A., & Sturdy, C. B. (2015). Temporal structure is key to midsession reversal performance in pigeons and chickadees. Presentation, Conference on Comparative Cognition (CO3) (Melbourne, FL) [International].
Yong, J. J. H., Hahn, A. H., Campbell, K. A., Congdon, J. V., Hoang, J., McMillan, N., Scully, E. N., & Sturdy, C. B. (2015). Discrimination of acoustically similar Parid and Estrildid vocalizations by black-capped chickadees (Poecile atricapillus). Poster, 29th Annual Joseph R. Royce Conference (Edmonton, AB) [Regional].
Congdon, J. V., Hahn, A. H., McMillan, N., Avey, M. T., & Sturdy, C. B. (2014). Chickadee vocal response to threat-level varies with signaler. Poster, 28th Annual Joseph R. Royce Conference (Edmonton, AB) [Regional].
Congdon, J. V. (2013). The influence of P300 information on reaction time. Presentation, The 26th Annual Honours Psychology Thesis Conference (Sault Ste. Marie, ON) [Institutional].