Jones, I.L., Lyon, B.E. 2024. Crested Auklets. Current Biology 33, R1173-R1175. PDF

Block, T.A., Lyon, B.E., Mikalonis, Z., Chaine, A.S., Shizuka, S. 2024. Social connections across migration: Do Golden-crowned Sparrows (Zonotrichia atricapilla) that socialize in winter also breed together? Wilson Journal of Ornithology 135: 569–575.

Wells C.P., Lyon, B.E., Thow, C.M., Stair, T., Jones, M., Hinton, M., Eadie, J.M.  2024. Limited evidence of biased offspring sex allocation in a cavity-nesting conspecific brood parasite. Behavioral Ecology 

Madsen, A.E., Lyon, B.E, Chaine, A.S, Block, T.A. & Shizuka, D. 2023. Loss of flockmates weakens winter site fidelity in golden-crowned sparrows (Zonotrichia atricapilla). Proceedings of the National Academy of Sciences, USA. 120 (32) e2219939120  PDF   Commentary by deSimone & Cohen PDF

Zink, A. & Lyon B.E. 2022. Natural selection: Fair weather cooperators. Current Biology 232: R1240-1242. (solicited Dispatch article) PDF

Lyon, B.E., Carminati, A., Goggin, G. & Eadie. J.M. 2022.  Did extreme nest predation favor the evolution of obligate brood parasitism in a duck? Ecology and Evolution 12:e9251. PDF

Lyon, B.E. & Chaine, A.S. 2022.  Mobbing for matings: dynamics, plumage correlates, and fitness impacts of conspicuous group extra-pair behaviors in the lark bunting. Behavioral Ecology and Sociobiology. 76:1-16 PDF

Eadie, J.M., Lyon, B.E. & Bridge, E.S. 2022. Putting eggs in many baskets. American Scientist 110: 144-146 PDF. Link to longer online version.

Kwon, E., Valcu,M., Cragnolini, M., Martin Bulla, M., Lyon, B.E. & Kempenaers, B. 2022.  Breeding site fidelity is lower in polygamous shorebirds and male-biased in monogamous species. Behavioral Ecology 33: 592-605. PDF.

Block, T.A., Star, R., Shizuka, D., Chaine, A.C., Lyon, B.E. 2021. A migratory sparrow has personality in winter that is independent of other traits. Animal Behaviour 178: 217-227. PDF

Thow, C,M., Eadie, J.M., Wells, C.P. & Lyon, B.E. 2021. Pedigree simulations reveal that maternity assignment is reliable in populations with conspecific brood parasitism, incomplete parental sampling and kin structure. Molecular Ecology Resources 22:180-198. PDF

Eadie, J. M. & Lyon, B.E. 2020. Environmentally driven escalation of host egg rejection decimates success of an avian brood parasite. Behavioral Ecology 31:1316-1325. PDF

Sapp, J.R., Yost, J. & Lyon B.E. 2020. Microsatellite evidence shows host-associated population structure and relatedness among neighbors in a social parasite (Polyergus mexicanus). Molecular Ecology 29:2050-2062. PDF

Shizuka, D. & Lyon, B.E. 2020. How to learn to recognize conspecific brood parasitic offspring. Philosophical Transactions of the Royal Society B. PDF

Lyon, B.E. & Shizuka D. 2020. Extreme offspring ornamentation in American coots is favored by selection within families, not benefits to conspecific brood parasites. Proceedings of the National Academy of Sciences, USA. 117: 2056-2064. PDF. Commentary by Doug Mock PDF

Tariel, J., Longo, G, Quiros, A., Crane N.L, Tenggardjaja, K., Jackson, A., Lyon, B.E. & Bernardi, G. 2019. Alloparental care in the sea: Brood parasitism within and between two species of coral reef Altrichthys damselfish? Molecular Ecology 28: 4680-4691. PDF

Bridge, E.S. et al. 2019. An Arduino-based RFID platform for animal research. Frontiers in Ecology and Evolution 7: 257. PDF

Lyon, B.E. & Zink, A. G. 2018. Evolution: How not to detect a brood parasite. Current Biology 28: R119-121 PDF

Chaine, A.S., Block, T.A., Zhang, L., Shizuka D. & Lyon, B.E. 2018. Manipulating badges of status only fools strangers. Ecology Letters 21:1477-1485. PDF

Lyon, B.E., Eadie, J.M. & Shizuka, D. 2018. Conspecific brood parasites can also help us understand the evolution of tolerance: a comment on Avilés. Behavioral Ecology 29:522-523. PDF Important Supplemental Figure PDF

Lyon, B.E. 2018. Why do some birds carry their chicks? Ecology 99: 241-243. PDF

Lyon, B.E. & Eadie, J.M. 2017. Why do birds lay eggs in conspecifics’ nests? In: Soler M (ed) Avian Brood Parasitism - Behaviour, Ecology, Evolution and Coevolution. Springer Nature, Heidelberg. PDF

Lyon B.E. & Eadie J.M. 2017. A comprehensive survey of the life history aspects of conspecific brood parasitism in birds. Dataset posted at Figshare: DOI 10.6084/m9.figshare.4787872 (comprehensive dataset from a review on life history characteristics of all birds with conspecific brood parasitism). Access at:

Lyon, B.E. & Shizuka, D. 2017.Context-dependent response to eggs: egg retrieval versus egg rejection in a conspecific brood parasite. Animal Behaviour 132: 281-289. PDF 

       See also an online blog article I wrote about the study: LINK

Zink, A.G. & Lyon, B.E. 2016. Evolution of conspecific brood parasitism versus cooperative breeding as alternative reproductive tactics. American Naturalist 187: 35-47. PDF

Arnberg, N, Chaine, A.S., Shizuka, D. & Lyon, B.E. 2015. Social network structure in wintering golden-crowned sparrows is not correlated with kinship. Molecular Ecology 24: 5034-44. PDF

Chaine A.S. & Lyon, B.E. 2015. Signal architecture: temporal variability and individual consistency of multiple sexually selected signals. Functional Ecology 29: 1178-1188. PDF

Lyon, B.E., Shizuka D. & Eadie, J.M. 2015. Interspecific egg rejection as ecological collateral damage from selection driven by conspecific brood parasitism.  Animal Behavior 103: 117-124.  PDF

Chaine, A.S., Montgomerie R.D. & Lyon, B.E. 2015. Sexual conflict arising from extrapair matings in birds. Cold Spring Harbor Perspectives in Biology 7:a017590.  PDF

Shizuka D., Chaine A.S., Anderson, J., Johnson O., Laursen, I.M. &Lyon, B.E. 2014. Across-year social stability shapes network structure in wintering migrant sparrows. Ecology Letters 17: 998-1007. PDF

Pöysa, H., Eadie, J.M.& Lyon, B.E. 2014. Conspecific brood parasitism in waterfowl and the cues parasites use.  Wildfowl Special Issue 4: 192-219.  PDF

Lyon, B.E. & Gilbert, G.S. 2013. Rarely parasitized and unparasitized species mob and alarm call to cuckoos: Implications for Sparrowhawk mimicry by brood parasitic cuckoos. Wilson Journal of Ornithology 125: 627-630. PDF

Chaine A.S., Roth, A., Shizuka D. & Lyon B.E. 2013. Experimental confirmation that avian plumage traits function as multiple status signals in winter flocks. Animal Behaviour 86: 409-415. PDF

Rose, A.P. & Lyon, B.E. 2013. Day length, reproductive effort and the avian latitudinal clutch size gradient. Ecology 94:1327-1337. PDF

Lyon, B.E. & Eadie J.M. 2013. Patterns of host use by a precocial obligate brood parasite, the Black-headed Duck: ecological and evolutionary considerations. Chinese Birds 4:71-85. PDF

Shizuka, D. & Lyon, B.E. 2013. Family dynamics though time: brood reduction followed by parental compensation through aggression and favoritism. Ecology Letters 16: 315-322. PDF

Lyon, B.E. & Montgomerie, R.D. 2012. Sexual selection is a form of social selection. Philosophical Transactions of the Royal Society B 367: 2266-2273. PDF

Tobias, J.A., Lyon, B.E. & Montgomerie, R.D. 2012. The evolution of female ornaments and weaponry: social selection, sexual selection and ecological competition. Philosophical Transactions of the Royal Society B 367: 2274-2293. PDF

Eadie. J.M & Lyon, B.E. 2011. The relative role of relatives in conspecific brood parasitism. Molecular Ecology 20: 5114-5118. (Invited News and Views piece) PDF

Arnold, T.W., Shizuka, D, Lyon, B.E., Pelayo, J.T, Mehl, K.R., Traylor,J.J., Reed, W.L.& Amundson,C.L. 2011. Use of nape tags for marking offspring of precocial waterbirds. Waterbirds 34: 312-318. PDF

Lyon, B.E. 2011. Q & A. Current Biology 21: R484-485. PDF

Abbot, P et al. 2011. Inclusive fitness theory and eusociality. Nature 141: Ei-E4. (137 author response to a Nature paper by Nowak, Tarnita & Wilson). PDF

Shizuka, D. & Lyon, B.E. 2011. Hosts improve the reliability of chick recognition by delaying the hatching of brood parasitic eggs. Current Biology 21:515-519. PDF (Supplemental Information PDF)

Chaine, A.S., Tjernell, K.A., Shizuka, D. and Lyon, B.E. 2011. Sparrows use multiple status signals in winter social flocks. Animal Behaviour 81: 447-453. PDF

Montgomerie, R.D & Lyon, B.E. 2011. Snow Bunting (Plectrophenax nivalis). The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology (revision of a species account published in 1995). Access available from the Birds of North America Online website with a subscription or by payment LINK

Montgomerie, R.D & Lyon, B.E. 2011. McKay's Bunting (Plectrophenax hyperborieus).The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology (revision of a species account published in 1995). Access available from the Birds of North America Online website with a subscription or by payment LINK

Lyon, B.E. & Shizuka, D. 2010. Communal breeding: clever defence against cheats. (Invited commentary). Current Biology 20: R931-933. PDF

Shizuka, D. & Lyon, B.E. 2010. Coots use hatch order to learn to recognize and reject conspecific brood parasitic chicks. Nature 463: 223-226. PDF (Supplemental Information PDF) (News and Views PDF)

Shizuka, D. & Lyon, B.E. 2008. Improving the reliability of molecular sexing of birds using a W-specific marker. Molecular Ecology Resources 8: 1249-1253. PDF

Lyon, BE & Eadie J.McA. 2008. Conspecific brood parasitism in birds: a life history perspective. Annual Reviews of Ecology, Evolution and Systematics 39: 343-363. PDF (Supplemental Information PDF)

Lyon, B.E., Chaine, A.S. & Winkler D.W. 2008. A matter of timing. Science 321: 1051-52. (Invited Perspective piece on the mechanisms of flexibility in life history responses to climate change) PDF

Chaine, A.S. & Lyon, B.E. 2008. Intra-sexual selection on multiple plumage ornaments in the lark bunting. Animal Behavior 76: 657-667. PDF

Chaine A.S. & Lyon, B.E. 2008. Adaptive plasticity in female mate choice dampens sexual selection on male ornaments in the lark bunting. Science 319: 459-62. PDF

Lyon, B.E. 2007. Mechanism of conspecific egg recognition in defenses against brood conspecific brood parasitism: American coots (Fulica americana) know their own eggs. Behavioral Ecology and Sociobiology 61: 455-463. PDF

Wasson, K.R. & Lyon, B.E. 2005. Flight or fight: flexible anti-predatory strategies in porcelain crabs. Behavioral Ecology 16: 1037-1041. PDF

Lyon, B.E. & Montgomerie, R.D. 2004. Dirty little secrets. Natural History Magazine June 2004: 18-22. PDF (Popular article about ptarmigan plumage color through dirtying)

Lyon, B.E. & Eadie, J. M. 2004. An obligate brood parasite trapped in the intraspecific arms race of its hosts. Nature 432: 390-393. PDF

Griffith, S.C., Lyon, B.E. & Montgomerie, R. 2004. Quasi-parasitism in birds. Behavioral Ecology and Sociobiology 56: 191-200. PDF

Lyon, B.E. 2003. Egg recognition and counting reduce costs of avian conspecific brood parasitism. Nature 422: 495-499. PDF and News and Views

Estes J.A., Riedman, M.L., Staedler, M.M., Tinker, M.T., & Lyon, B.E. 2003. Individual variation in prey selection by sea otters: patterns, causes, and implications. Journal of Animal Ecology 72: 144-155. PDF

Lyon, B.E. 2003. Ecological and social constraints on conspecific brood parasitism by nesting female American coots (Fulica americana). Journal of Animal Ecology 72: 47-60. PDF

Lyon, B.E., Hochachka, W.M. & Eadie, J.M. 2002. Paternity-parasitism trade-offs: a model and test of host-parasite cooperation in an avian conspecific brood parasite. Evolution 56: 1253-1266. PDF

Wasson, K. & Lyon B.E. 2002. How are animal care guidelines applied to invertebrates? International Society for Behavioral Ecology Newsletter 14: 17-19 (Commentary invited by editor of Behavioral Ecology) PDF

Wasson, K., Lyon B.E. & Knope, M. 2002. An antipredatory benefit to hair-trigger autotomy in porcelain crabs. Behavioral Ecology 13: 481-486. PDF

Montgomerie, R.D., Lyon, B.E. & Holder, K. 2001. Dirty ptarmigan: behavioural modification of conspicuous male plumage. Behavioral Ecology 12:429-38. PDF (NOTE VERY LARGE FILE 7MB DUE TO HIGH RESOLUTION IMAGE!)

Lyon, B.E. & Eadie, J.M. 2000. Family matters: Kin selection and the evolution of conspecific brood parasitism. Proceedings of the National Academy of Sciences, USA. 97: 12942-12944. PDF

Greene, E.P., Lyon, B.E., Meuhter,V.R., Ratcliff. L., Boag, P.T. & Oliver, S.J. 2000. Disruptive sexual selection for plumage coloration in a monogamous passerine bird. Nature 407: 1000-1003. PDF

Eadie, J.M. & Lyon, B.E. 1998. Cooperation, conflict and crèching behavior in Barrow's Goldeneyes. American Naturalist 151: 397-408. PDF

Lyon, B.E. 1998. Optimal clutch size and conspecific brood parasitism. Nature 392: 380-383. PDF

Lyon, B.E. 1997. Brood parasitism by shiny cowbirds on chestnut-capped blackbirds: egg morphs and spatial patterns of parasitism. Animal Behaviour 54: 927-939. PDF

Lyon, B.E. & Everding, S. 1996 A high frequency of conspecific brood parasitism in a colonial waterbird, the Eared Grebe (Podiceps nigricollis). Journal of Avian Biology 27: 238 - 244. PDF

Lyon, B.E. & Cartar, R.V. 1996 Functional significance of the cocoon in two arctic Gynaephora moth species. Proceedings of the Royal Society, London 263: 1159-1163. PDF

Lyon, B.E. & Montgomerie, R.D. 1995. Snow Bunting and McKay's Bunting (Plectrophenax nivalis and P. hyperborieus) In The Birds of North America, No. 198-199 (A. Poole, P. Steenheim, and F. Gill eds.) The Academy of Natural Sciences, Philadelphia and The American Ornithologists Union, Washington, D.C.

Lyon, B.E., Eadie, J.M. & Hamilton, L.D. 1994. Parental preference selects for ornamental plumage in American coot chicks. Nature 371: 240-243. PDF   News and Views PDF

Lyon, B.E. 1994. A technique for measuring chicks from photographs. Condor 96: 805-809. PDF

Lyon, B.E. 1993. Conspecific brood parasitism as a flexible female reproductive tactic in American coots. Animal Behaviour 46: 911-928. PDF

Lyon, B.E. 1993. Tactics of parasitic American coots: host choice and the pattern of egg dispersion among host nests. Behavioral Ecology and Sociobiology 33: 87-100. PDF

Lyon, B.E., Hamilton, L.D. & Magrath, M. 1992. The frequency of conspecific brood parasitism and the pattern of laying determinancy in yellow-headed blackbirds. Condor 94: 590-597. PDF

Lyon, B.E. 1991. Brood parasitism in American coots: avoiding the constraints of parental care. Acta XX Congressus Internationalis Ornithologici: pp. 1023-30.

Lyon, B.E. & Eadie, J.McA. 1991. Mode of development and interspecific avian brood parasitism. Behavioral Ecology 2: 309-318. PDF

Lyon, B.E. & Fogden, M.P.L. 1989. Breeding biology of the Sunbittern (Eurypyga helias) in Costa Rica. Auk 106: 503-507. PDF

Cartar, R.V. & Lyon, B.E. 1988. The mating system of the buff-breasted sandpiper: lekking and resource defense polygyny. Ornis Scandinavica 19: 74-76. PDF

Lyon, B.E., Montgomerie, R.D. & Hamilton, L.D. 1987. Male parental care and monogamy in snow buntings. Behavioral Ecology and Sociobiology 20: 377-382. PDF

Lyon, B.E. & Montgomerie, R.D. 1987. Ecological correlates of incubation feeding: a comparative study of two high arctic finches. Ecology 68: 713-722. PDF

Montgomerie, R.D. & Lyon, B.E. 1986. Does longevity influence the evolution of delayed plumage maturation in passerine birds? American Naturalist 128: 930-936. PDF

Lyon, B.E. & Montgomerie, R.D. 1986. Delayed plumage maturation in passerine birds: reliable signaling by subordinate males? Evolution 40: 605-615. PDF

Lyon, B.E. & Montgomerie, R.D. 1985. Incubation feeding in snow buntings: female manipulation or indirect male parental care? Behavioral Ecology and Sociobiology 17: 279-284. PDF

Lyon, B.E. & Montgomerie, R.D. 1985. Conspicuous plumages of birds: sexual selection or unprofitable prey? Animal Behaviour 33: 1038-1040. PDF

Lyon, B.E. & Kuhnigk, A. 1985. Observations on nesting ornate hawk-eagles in Guatemala. Wilson Bulletin 97: 141-147. PDF

Montgomerie, R.D., Cartar, R.V., McLaughlin, R.L. & Lyon, B.E. 1983. The birds of Sarcpa Lake, Melville Peninsula, Northwest Territories: breeding phenologies, densities and biogeography. Arctic 36: 65-75 PDF