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Items: 1 to 50 of 102


Spontaneous innovation of hook-bending and unbending in orangutans (Pongo abelii).

Laumer IB, Call J, Bugnyar T, Auersperg AMI.

Sci Rep. 2018 Nov 8;8(1):16518. doi: 10.1038/s41598-018-34607-0.


Social status and prenatal testosterone exposure assessed via second-to-fourth digit ratio affect 6-9-year-old children's prosocial choices.

Horn L, Hungerländer NA, Windhager S, Bugnyar T, Massen JJM.

Sci Rep. 2018 Jun 15;8(1):9198. doi: 10.1038/s41598-018-27468-0.


Attacked ravens flexibly adjust signalling behaviour according to audience composition.

Szipl G, Ringler E, Bugnyar T.

Proc Biol Sci. 2018 Jun 13;285(1880). pii: 20180375. doi: 10.1098/rspb.2018.0375.


Raven food calls indicate sender's age and sex.

Boeckle M, Szipl G, Bugnyar T.

Front Zool. 2018 Mar 13;15:5. doi: 10.1186/s12983-018-0255-z. eCollection 2018.


Calls during agonistic interactions vary with arousal and raise audience attention in ravens.

Szipl G, Ringler E, Spreafico M, Bugnyar T.

Front Zool. 2017 Dec 21;14:57. doi: 10.1186/s12983-017-0244-7. eCollection 2017.


Common marmoset (Callithrix jacchus) personality.

Koski SE, Buchanan-Smith HM, Ash H, Burkart JM, Bugnyar T, Weiss A.

J Comp Psychol. 2017 Nov;131(4):326-336. doi: 10.1037/com0000089. Epub 2017 Oct 12.


Sharing of science is most likely among male scientists.

Massen JJM, Bauer L, Spurny B, Bugnyar T, Kret ME.

Sci Rep. 2017 Oct 10;7(1):12927. doi: 10.1038/s41598-017-13491-0.


Can hook-bending be let off the hook? Bending/unbending of pliant tools by cockatoos.

Laumer IB, Bugnyar T, Reber SA, Auersperg AMI.

Proc Biol Sci. 2017 Sep 13;284(1862). pii: 20171026. doi: 10.1098/rspb.2017.1026.


Kea (Nestor notabilis) decide early when to wait in food exchange task.

Schwing R, Weber S, Bugnyar T.

J Comp Psychol. 2017 Nov;131(4):269-276. doi: 10.1037/com0000086. Epub 2017 Aug 31.


A technological framework for running and analyzing animal head turning experiments.

Oh J, Hoeschele M, Reber SA, Šlipogor V, Bugnyar T, Fitch WT.

Behav Res Methods. 2018 Jun;50(3):1154-1165. doi: 10.3758/s13428-017-0934-2.


The temporal dependence of exploration on neotic style in birds.

O'Hara M, Mioduszewska B, von Bayern A, Auersperg A, Bugnyar T, Wilkinson A, Huber L, Gajdon GK.

Sci Rep. 2017 Jul 6;7(1):4742. doi: 10.1038/s41598-017-04751-0.


Apes perform like infants in false-belief tasks.

Bugnyar T.

Learn Behav. 2017 Dec;45(4):325-326. doi: 10.3758/s13420-017-0268-z.


Fission-fusion dynamics over large distances in raven non-breeders.

Loretto MC, Schuster R, Itty C, Marchand P, Genero F, Bugnyar T.

Sci Rep. 2017 Mar 23;7(1):380. doi: 10.1038/s41598-017-00404-4.


Behavioural and Hormonal Stress Responses to Social Separation in Ravens, Corvus corax.

Munteanu AM, Stocker M, Stöwe M, Massen JJ, Bugnyar T.

Ethology. 2017 Feb;123(2):123-135. doi: 10.1111/eth.12580. Epub 2016 Dec 28.


Proactive prosociality in a cooperatively breeding corvid, the azure-winged magpie (Cyanopica cyana).

Horn L, Scheer C, Bugnyar T, Massen JJ.

Biol Lett. 2016 Oct;12(10). pii: 20160649. doi: 10.1098/rsbl.2016.0649.


Erratum to: Adjusting foraging strategies: a comparison of rural and urban common mynas (Acridotheres tristis).

Federspiel IG, Garland A, Guez D, Bugnyar T, Healy SD, Güntürkün O, Griffin AS.

Anim Cogn. 2017 Jan;20(1):75. doi: 10.1007/s10071-017-1070-1. No abstract available.


Erratum to: Animal cognition in a human-dominated world.

Griffin AS, Tebbich S, Bugnyar T.

Anim Cogn. 2017 Jan;20(1):7. doi: 10.1007/s10071-017-1071-0. No abstract available.


Animal cognition in a human-dominated world.

Griffin AS, Tebbich S, Bugnyar T.

Anim Cogn. 2017 Jan;20(1):1-6. doi: 10.1007/s10071-016-1051-9. No abstract available. Erratum in: Anim Cogn. 2017 Jan;20(1):7.


Behavioural Type Affects Space Use in a Wild Population of Crows (Corvus corone).

Deventer SA, Uhl F, Bugnyar T, Miller R, Fitch WT, Schiestl M, Ringler M, Schwab C.

Ethology. 2016 Nov;122(11):881-891. Epub 2016 Oct 6.


Responses of urban crows to con- and hetero-specific alarm calls in predator and non-predator zoo enclosures.

Bílá K, Beránková J, Veselý P, Bugnyar T, Schwab C.

Anim Cogn. 2017 Jan;20(1):43-51. doi: 10.1007/s10071-016-1047-5. Epub 2016 Oct 31.


Adjusting foraging strategies: a comparison of rural and urban common mynas (Acridotheres tristis).

Federspiel IG, Garland A, Guez D, Bugnyar T, Healy SD, Güntürkün O, Griffin AS.

Anim Cogn. 2017 Jan;20(1):65-74. doi: 10.1007/s10071-016-1045-7. Epub 2016 Oct 24. Erratum in: Anim Cogn. 2017 Jan;20(1):75.


Social networks predict selective observation and information spread in ravens.

Kulahci IG, Rubenstein DI, Bugnyar T, Hoppitt W, Mikus N, Schwab C.

R Soc Open Sci. 2016 Jul 13;3(7):160256. doi: 10.1098/rsos.160256. eCollection 2016 Jul.


GPS tracking of non-breeding ravens reveals the importance of anthropogenic food sources during their dispersal in the Eastern Alps.

Loretto MC, Schuster R, Bugnyar T.

Curr Zool. 2016 Aug;62(4):337-344. doi: 10.1093/cz/zow016. Epub 2016 Mar 25.


Within-group relationships and lack of social enhancement during object manipulation in captive Goffin's cockatoos (Cacatua goffiniana).

Szabo B, Bugnyar T, Auersperg AM.

Learn Behav. 2017 Mar;45(1):7-19. doi: 10.3758/s13420-016-0235-0.


Explorative innovators and flexible use of social information in common ravens (Corvus corax) and carrion crows (Corvus corone).

Miller R, Schwab C, Bugnyar T.

J Comp Psychol. 2016 Nov;130(4):328-340. doi: 10.1037/com0000039. Epub 2016 Jun 30.


Territorial raven pairs are sensitive to structural changes in simulated acoustic displays of conspecifics.

Reber SA, Boeckle M, Szipl G, Janisch J, Bugnyar T, Fitch WT.

Anim Behav. 2016 Jun;116:153-162.


Flexible decision-making relative to reward quality and tool functionality in Goffin cockatoos (Cacatua goffiniana).

Laumer IB, Bugnyar T, Auersperg AM.

Sci Rep. 2016 Jun 23;6:28380. doi: 10.1038/srep28380.


Partner Choice in Raven (Corvus corax) Cooperation.

Asakawa-Haas K, Schiestl M, Bugnyar T, Massen JJ.

PLoS One. 2016 Jun 10;11(6):e0156962. doi: 10.1371/journal.pone.0156962. eCollection 2016.


Consistent inter-individual differences in common marmosets (Callithrix jacchus) in Boldness-Shyness, Stress-Activity, and Exploration-Avoidance.

Šlipogor V, Gunhold-de Oliveira T, Tadić Z, Massen JJ, Bugnyar T.

Am J Primatol. 2016 Sep;78(9):961-73. doi: 10.1002/ajp.22566. Epub 2016 Jun 10.


Take the long way home: Behaviour of a neotropical frog, Allobates femoralis, in a detour task.

Munteanu AM, Starnberger I, Pašukonis A, Bugnyar T, Hödl W, Fitch WT.

Behav Processes. 2016 May;126:71-5. doi: 10.1016/j.beproc.2016.03.009. Epub 2016 Mar 17.


Cognition without Cortex.

Güntürkün O, Bugnyar T.

Trends Cogn Sci. 2016 Apr;20(4):291-303. doi: 10.1016/j.tics.2016.02.001. Epub 2016 Mar 2. Review.


Socially Driven Consistent Behavioural Differences during Development in Common Ravens and Carrion Crows.

Miller R, Laskowski KL, Schiestl M, Bugnyar T, Schwab C.

PLoS One. 2016 Feb 5;11(2):e0148822. doi: 10.1371/journal.pone.0148822. eCollection 2016.


Ravens attribute visual access to unseen competitors.

Bugnyar T, Reber SA, Buckner C.

Nat Commun. 2016 Feb 2;7:10506. doi: 10.1038/ncomms10506.


Loner or socializer? Ravens' adrenocortical response to individual separation depends on social integration.

Stocker M, Munteanu A, Stöwe M, Schwab C, Palme R, Bugnyar T.

Horm Behav. 2016 Feb;78:194-9. doi: 10.1016/j.yhbeh.2015.11.009. Epub 2015 Nov 26.


Do monkeys compare themselves to others?

Schmitt V, Federspiel I, Eckert J, Keupp S, Tschernek L, Faraut L, Schuster R, Michels C, Sennhenn-Reulen H, Bugnyar T, Mussweiler T, Fischer J.

Anim Cogn. 2016 Mar;19(2):417-28. doi: 10.1007/s10071-015-0943-4. Epub 2015 Nov 28.


Tolerance and reward equity predict cooperation in ravens (Corvus corax).

Massen JJ, Ritter C, Bugnyar T.

Sci Rep. 2015 Oct 7;5:15021. doi: 10.1038/srep15021.


Inference by Exclusion in Goffin Cockatoos (Cacatua goffini).

O'Hara M, Auersperg AM, Bugnyar T, Huber L.

PLoS One. 2015 Aug 5;10(8):e0134894. doi: 10.1371/journal.pone.0134894. eCollection 2015.


Subadult ravens generally don't transfer valuable tokens to conspecifics when there is nothing to gain for themselves.

Massen JJ, Lambert M, Schiestl M, Bugnyar T.

Front Psychol. 2015 Jun 30;6:885. doi: 10.3389/fpsyg.2015.00885. eCollection 2015.


Differences in exploration behaviour in common ravens and carrion crows during development and across social context.

Miller R, Bugnyar T, Pölzl K, Schwab C.

Behav Ecol Sociobiol. 2015;69(7):1209-1220. Epub 2015 May 12.


Unrewarded Object Combinations in Captive Parrots.

Auersperg AM, Oswald N, Domanegg M, Gajdon GK, Bugnyar T.

Anim Behav Cogn. 2014 Nov 1;1(4):470-488.


Tolerance and Social Facilitation in the Foraging Behaviour of Free-Ranging Crows (Corvus corone corone; C. c. cornix).

Miller R, Schiestl M, Whiten A, Schwab C, Bugnyar T.

Ethology. 2014 Dec 1;120(12):1248-1255.


Waiting for better, not for more: corvids respond to quality in two delay maintenance tasks.

Hillemann F, Bugnyar T, Kotrschal K, Wascher CA.

Anim Behav. 2014 Apr 1;90:1-10.


With whom to dine? Ravens' responses to food-associated calls depend on individual characteristics of the caller.

Szipl G, Boeckle M, Wascher CA, Spreafico M, Bugnyar T.

Anim Behav. 2015 Jan;99:33-42.


Ravens intervene in others' bonding attempts.

Massen JJ, Szipl G, Spreafico M, Bugnyar T.

Curr Biol. 2014 Nov 17;24(22):2733-6. doi: 10.1016/j.cub.2014.09.073. Epub 2014 Oct 30.


Combinatory actions during object play in psittaciformes (Diopsittaca nobilis, Pionites melanocephala, Cacatua goffini) and corvids (Corvus corax, C. monedula, C. moneduloides).

Auersperg AM, van Horik JO, Bugnyar T, Kacelnik A, Emery NJ, von Bayern AM.

J Comp Psychol. 2015 Feb;129(1):62-71. doi: 10.1037/a0038314. Epub 2014 Dec 1. Erratum in: J Comp Psychol. 2015 Feb;129(1):61.


Long-term fidelity of foraging techniques in common marmosets (Callithrix jacchus).

Gunhold T, Range F, Huber L, Bugnyar T.

Am J Primatol. 2015 Mar;77(3):264-70. doi: 10.1002/ajp.22342. Epub 2014 Sep 17.


Video demonstrations seed alternative problem-solving techniques in wild common marmosets.

Gunhold T, Whiten A, Bugnyar T.

Biol Lett. 2014 Sep;10(9). pii: 20140439. doi: 10.1098/rsbl.2014.0439.


Social transmission of tool use and tool manufacture in Goffin cockatoos (Cacatua goffini).

Auersperg AM, von Bayern AM, Weber S, Szabadvari A, Bugnyar T, Kacelnik A.

Proc Biol Sci. 2014 Oct 22;281(1793). pii: 20140972. doi: 10.1098/rspb.2014.0972.

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