Abstract
Song by female birds is rare in some species, particularly at north-temperate latitudes. Nevertheless, female song can carry important signal content and may be used in functional ways, both when sung solo and when combined into partner duets. Evidence supports the idea that duets reflect elevated threat levels because they indicate partner cooperation, but this comes from species with frequent female song and duetting. Here we asked the following questions about infrequently given female song in canyon wrens (Catherpes mexicanus) in Western North America. Do female birds use song in a context that implies functional significance? Do canyon wren mates combine their songs to form duets? Are duets a more threatening signal than non-overlapping dual-sex solo songs? To address these questions, we challenged canyon wrens with paired simulated intruders singing alternating solo songs or duets formed by overlapping male and female songs with consistent timing. Results indicated that female canyon wrens approached and sang in response to conspecific song playback as quickly as males did and increased their song rates significantly. Partners did not overlap their songs to create duets more often than expected by chance, and neither sex responded more strongly to duets than to solo songs. Outcomes match the prediction that duets only carry different signal content from solo song in species that frequently duet, and suggest that canyon wren female song is highly functional despite being rarely used outside of contest situations.
Significance statement
Animal signals mediate social interactions in myriad ways. The majority of studies of avian song have focused on conspicuous, frequently given, signals but infrequently given signals may also have important fitness consequences. We examined how the usage of a rare signal, canyon wren female song, changed during contest situations and in response to a coordinated duet versus non-coordinated solo songs. Rates of female song increased significantly during contest situations, but duets did not provoke stronger responses than solos. Although duets are threatening to species that duet (including many wren species), they do not appear to be universally salient. Canyon wren female song, in contrast, carries strong signal content despite being used infrequently outside of contest situations. Results highlight the potential functionality of rare signals, as well as the variability in signaling strategies across avian species.
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Data availability
The datasets generated and analyzed during the current study are available from the corresponding author on reasonable request.
References
Appleby BM, Yamaguchi N, Johnson PJ, MacDonald DW (1999) Sex-specific territorial responses in tawny owls Strix aluco. Ibis 141:91–99
Baldassarre DT, Greig EI, Webster MS (2016) The couple that sings together stays together: duetting, aggression and extra-pair paternity in a promiscuous bird species. Biol Lett 12:20151025
Benedict L (2008) Occurrence and life history correlates of vocal duetting in North American passerines. J Avian Biol 39:57–65
Benedict L (2010) California towhee vocal duets are multi-functional signals for multiple receivers. Behaviour 147:953–978
Benedict L, Rose A, Warning N (2012) Canyon wrens alter their songs in response to territorial challenges. Anim Behav 84:1463–1467
Benedict L, Rose A, Warning N (2013) Small song repertoires and high rate of song-type sharing among canyon wrens. Condor 115:874–881
Blumstein DT, Recapet C (2009) The sound of arousal: the addition of novel non-linearities increases responsiveness in marmot alarm calls. Ethology 115:1074–1081
Bradbury JW, Vehrencamp SL (2011) Principles of animal communication, 2nd edn. Sinauer, Sunderland
Brumm H, Naguib M (2009) Environmental acoustics and the evolution of bird song. Adv Stud Behav 40:1–33
Brunton DH, Roper MM, Harmer AM (2016) Female song rate and structure predict reproductive success in a socially monogamous bird. Front Ecol Evol 4:13
Byers BE, King DI (2000) Singing by female chestnut-sided warblers. Wilson Bull 112:547–550
Cain KE, Langmore NE (2015) Female and male song rates across breeding stage: testing for sexual and nonsexual functions of female song. Anim Behav 109:65–71
Cain KE, Cockburn A, Langmore NE (2015) Female song rates in response to simulated intruder are positively related to reproductive success. Front Ecol Evol 3:119
Catchpole CK (1977) Aggressive responses of male sedge warblers (Acrocephalus schoenobaenus) to playback of species song and sympatric species song, before and after pairing. Anim Behav 25:489–496
Catchpole CK, Slater PJ (2008) Bird song: biological themes and variations. Cambridge University Press, Cambridge
Cooney R, Cockburn A (1995) Territorial defense is the major function of female song in the superb fairy-wren. Anim Behav 49:1635–1647
Dahlin CR, Benedict L (2013) Angry birds need not apply: a perspective on the flexible form and multifunctionality of avian vocal duets. Ethology 120:1–10
Dawkins MS, Guilford T (1991) The corruption of honest signalling. Anim Behav 41:865–873
Elekonich MM (2000) Female song sparrow, Melospiza melodia, response to simulated conspecific and heterospecific intrusion across three seasons. Anim Behav 59:551–557
Fair J, Paul E, Jones J (eds) (2010) Guidelines to the use of wild birds in research, 3rd edn. Ornithological Council, Washington DC
Ficken RW, Ficken MS, Hailman JP (1974) Temporal pattern shifts to avoid acoustic interference in singing birds. Science 183:762–763
Garamszegi LZ, Pavlova DZ, Eens M, Møller AP (2007) The evolution of song in female birds in Europe. Behav Ecol 18:86–96
Geberzahn N, Aubin T (2014) How a songbird with a continuous singing style modulates its song when territorially challenged. Behav Ecol Sociobiol 68:1–12
Gil D, Gahr M (2002) The honesty of bird song: multiple constraints for multiple traits. Trends Ecol Evol 17:133–141
Halkin SL (1997) Nest-vicinity song exchanges may coordinate biparental care of northern cardinals. Anim Behav 54:189–198
Hall ML (2000) The function of duetting in magpie-larks: conflict, cooperation, or commitment? Anim Behav 60:667–677
Hall ML (2004) A review of hypotheses for the functions of avian duetting. Behav Ecol Sociobiol 55:415–430
Hall ML (2009) A review of vocal duetting in birds. Adv Stud Behav 40:67–121
Hall ML, Langmore NE (2017) Fitness costs and benefits of female song. Front Ecol Evol 5:48
Hall ML, Magrath RD (2007) Temporal coordination signals coalition quality. Curr Biol 17:406–407
Hall ML, Rittenbach MRD, Vehrencamp SL (2015) Female song and vocal interactions with males in a neotropical wren. Front Ecol Evol 3:12
Hauser MD, Nelson DA (1991) ‘Intentional’ signaling in animal communication. Trends Ecol Evol 6:186–189
Hoelzel A (1986) Song characteristics and response to playback of male and female robins Erithacus rubecula. Ibis 128:115–127
Illes AE, Yunes-Jimenez L (2009) A female bird out-sings male conspecifics during simulated territorial intrusions. Proc R Soc Lond B 276:981–986
Jones S, Dieni J (1995) Canyon wren (Catherpes mexicanus). In: Rodewald PG (ed) The birds of North America. Cornell Lab of Ornithology, Ithaca. https://doi.org/10.2173/bna.197
Koloff J, Mennill D (2011) Aggressive responses to playback of solos and duets in a neotropical antbird. Anim Behav 82:587–593
Kovach KA, Hall ML, Vehrencamp SL, Mennill DJ (2014) Timing isn’t everything: responses of tropical wrens to coordinated duets, uncoordinated duets and alternating solos. Anim Behav 95:101–109
Krieg CA, Getty T (2016) Not just for males: females use song against male and female rivals in a temperate zone songbird. Anim Behav 113:39–47
Laidre ME, Johnstone RA (2013) Animal signals. Curr Biol 23:R829–R833
Langmore NE (1998) Functions of duet and solo songs of female birds. Trends Ecol Evol 13:136–140
Langmore NE, Davies NB, Hatchwell BJ, Hartley IR (1996) Female song attracts males in the alpine accentor Prunella collaris. Proc R Soc Lond B 263:141–146
Levin RN (1996) Song behaviour and reproductive strategies in a duetting wren, Thryothorus nigricapillus: II. Playback experiments. Anim Behav 52:1107–1117
Logue DM (2005) Cooperative defence in duet singing birds. Cogn Brain Behav 9:497–510
Logue DM, Gammon DE (2004) Duet song and sex roles during territory defense in a tropical bird, the black-bellied wren, Thryothorus fasciatovetris. Anim Behav 68:721–731
Mann NI, Marshall-Ball L, Slater PJB (2003) The complex song duet of the plain wren. Condor 105:672–682
Mann NI, Dingess KA, Barker FK, Graves JA, Slater PJB (2009) A comparative study of song form and duetting in neotropical Thryothorus wrens. Behaviour 146:1–43
Masco C, Allesina S, Mennill DJ, Pruett-Jones S (2016) The Song Overlap Null model Generator (SONG): a new tool for distinguishing between random and non-random song overlap. Bioacoustics 25:29–40
Mennill DJ (2006) Aggressive responses of male and female rufous-and-white wrens to stereo duet playback. Anim Behav 71:219–226
Morton ES (1977) On the occurrence and significance of motivation-structural rules in some bird and mammal sounds. Am Nat 111:855–869
Najar N, Benedict L (2016) Female song in new world wood-warblers (Parulidae). Front Ecol Evol 3:139
Nice M (1943) Studies in the life history of the song sparrow. II. Trans Linn Soc NY 6:l–328
Odom KJ, Benedict L (2018) A call to document female bird songs: applications for diverse fields. Auk: Ornithol Adv 135:314–325
Odom KJ, Hall ML, Riebel K, Omland KE, Langmore NE (2014) Female song is widespread and ancestral in songbirds. Nat Commun 5:3379
Price JJ (2009) Evolution and life history correlates of female song in the new world blackbirds. Behav Ecol 20:967–977
Riebel K, Hall ML, Langmore NE (2005) Female songbirds still struggling to be heard. Trends Ecol Evol 20:419–420
Rivera-Cáceres KD (2015) Plain wrens Cantorchilus modestus zeledoni adjust their singing tempo based on self and partner’s cues to perform precisely coordinated duets. J Avian Biol 46:361–368
Rogers AC, Langmore NE, Mulder RA (2007) Function of pair duets in the eastern whipbird: cooperative defense or sexual conflict? Behav Ecol 18:182–188
Searcy WA (1996) Sound-pressure levels and song preferences in female red-winged blackbirds (Agelaius phoeniceus) (Aves, Emberizidae). Ethology 102:187–196
Seddon N, Tobias JA (2006) Duets defend mates in a suboscine passerine, the warbling antbird (Hypocnemis cantator). Behav Ecol 17:73–83
Shuler JB (1965) Duet singing in the Carolina wren. Wilson Bull 77:405–405
Slater PJB, Mann NI (2004) Why do the females of many bird species sing in the tropics? J Avian Biol 35:289–294
Spencer A (2012) Female song in canyon wrens, with notes on vocal repertoire. Colorado Birds 46:268–276
Taff CC, Littrell KA, Freeman-Gallant CR (2012) Female song in the common yellowthroat. Wilson J Ornithol 124:370–374
Templeton CN, Rivera-Cáceres KD, Mann NI, Slater PJB (2011) Song duets function primarily as cooperative displays in pairs of happy wrens. Anim Behav 82:1399–1407
Templeton CN, Mann NI, Rios-Chelen AA, Quiros-Guerrero E, Garcia CM, Slater PJB (2013) An experimental study of duet integration in the happy wren, Pheugopedius felix. Anim Behav 86:821–827
Tobias JA, Sheard C, Seddon N, Meade A, Cotton AJ, Nakagawa S (2016) Territoriality, social bonds, and the evolution of communal signaling in birds. Front Ecol Evol 4:74
Warning N, Benedict L (2015) Overlapping home ranges and microhabitat partitioning among canyon wrens (Catherpes mexicanus) and rock wrens (Salpinctes obsoletus). Wilson J Ornithol 127:395–401
Webb WD, Brunton DH, Aguirre JD, Thomas DB, Valcu M, Dale J (2016) Female song occurs in songbirds with more elaborate female coloration and reduced sexual dichromatism. Front Ecol Evol 4:22
Zollinger SA, Podos J, Nemeth E, Goller F, Brumm H (2012) On the relationship between, and measurement of, amplitude and frequency in birdsong. Anim Behav 84:e1–e9
Acknowledgments
The following agencies provided access to field sites: The U.S. Forest Service, CO Parks and Wildlife, Larimer Co., Boulder Co. OSMP, Denver Mountain Parks, and Fort Collins Natural Areas. We thank Andrew Spencer for allowing us the use of audio files. Henrik Brumm and two anonymous reviewers provided comments that improved the manuscript.
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This work was supported by a grant from the University of Northern Colorado’s Provost Fund.
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All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving animals were in accordance with the ethical standards of the University of Northern Colorado’s Institutional Animal Care and Use Committee (Protocol No. 1506C-LB-Birds-18).
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Hathcock, T.J., Benedict, L. Conspecific challenges provoke female canyon wrens to sing but not to duet. Behav Ecol Sociobiol 72, 196 (2018). https://doi.org/10.1007/s00265-018-2625-0
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DOI: https://doi.org/10.1007/s00265-018-2625-0