Arbeiter, S., Schnepel, H., Uhlenhaut, K., Bloege, Y., Schulze, M. & Hahn, S. 2014. Seasonal shift in the diet composition of European Bee-eaters Merops apiaster at the northern edge of distribution. – Ardeola 61(1): 161–170. DOI: 10.13157/arla.61.1.2014.161
Bastian, H-V. & Bastian, A. 2023. Specialist or opportunist – the diet of the European Bee-eater (Merops apiaster). – Journal of Ornithology 164(4): 729–747. DOI: 10.1007/s10336-023-02072-w
Bastian, H-V. & Bastian, A. 2024. European Bee-eater (Merops apiaster), version 3.0. – In: Billerman, S. M. & Keeney, B. K. (eds.) Birds of the World. – Cornell Lab of Ornithology, Ithaca DOI: 10.2173/bow.eubeat1.03
Bila Dubaić, J., Simonović, S., Plećaš, M., Stanisavljević, L., Davidović, S., Tanasković, M. & Ćetković, A. 2021. Unprecedented density and persistence of Feral Honey Bees in urban environments of a large SE-European city (Belgrade, Serbia). – Insects 12(12): 1127. DOI: 10.3390/insects12121127
Bowler, D. E., Heldbjerg, H., Fox, A. D., de Jong, M. & Böhning-Gaese, K. 2019. Long-term declines of European insectivorous bird populations and potential causes. – Conservation Biology 33(5): 1120–1130. DOI: 10.1111/cobi.13307
Farinós-Celdrán, P., Zapata, V. M., Martínez-López, V. & Robledano, F. 2016. Consumption of Honey Bees by Merops apiaster Linnaeus, 1758 (Aves: Meropidae) in Mediterranean semiarid landscapes: a threat to beekeeping? – Journal of Apicultural Research 55(2): 193–201. DOI: 10.1080/00218839.2016.1195630
Fuisz, T. I., Vas, Z., Túri, K. & Kőrösi, A. 2013. Photographic survey of the prey-choice of European Bee-eaters (Merops apiaster Linnaeus, 1758) in Hungary at three colonies. – Ornis Hungarica 21(2): 38–46. DOI: 10.2478/orhu-2014-0004
Galeotti, P. & Inglisa, M. 2001. Estimating predation impact on Honeybees Apis mellifera L. by European Bee-eaters Merops apiaster L. – Revue d’Ecologie, Terre et Vie 56(4): 373–388.
Goffová, K., Krčmárik, S., Selnekovič, D., Langraf, V., Bohuš, M. & Purkart, A. 2022. Does breeding habitat affect the amount of ants in the diet of European Bee-eater nestlings? – Biologia 77(1): 157–165. DOI: 10.1007/s11756-021-00926-3
Goulson, D. 2010. Bumblebees. Behaviour, Ecology and Conservation, 2nd ed. – Oxford University Press, Oxford Goulson, D., Lye, G. C. & Darvill, B. 2008. Diet breadth, coexistence and rarity in bumblebees. – Biodiversity and Conservation 17(13): 3269–3288. DOI: 10.1007/s10531-008-9428-y
Hallmann, C. A., Sorg, M., Jongejans, E., Siepel, H., Hofland, N., Schwan, H., Stenmans, W., Müller, A., Sumser, H., Hörren, T. & Goulson, D. 2017. More than 75 percent decline over 27 years in total flying insect biomass in protected areas. – PloS One 12(10): e0185809. DOI: 10.1371/journal.pone.0185809
Inglisa, M., Galeotti, P. & Taglianti, A. V. 1993. The diet of a coastal population of European Bee-eaters (Merops apiaster) compared to prey availability (Tuscany, central Italy). – Bollettino di Zoologia 60(3): 307–310. DOI: 10.1080/11250009309355829
Jakovljević, K., Lakušić, D., Vukojičić, S., Teofilović, A. & Jovanović, S. 2008. Floristic characteristics of Višnjička Kosa near Belgrade, Serbia. – Archives of Biological Sciences 60(4): 703–712. DOI: 10.2298/ABS0804703J
Krüger, T. 2018. Importance of bumblebees (Hymenoptera: Apidae: Bombus spec.) in the diet of European Bee-eaters (Merops apiaster) breeding in oceanic climate. – Journal of Ornithology 159(1): 151–164. DOI: 10.1007/s10336-017-1485-0
Macek, J., Straka, J., Bogusch, P., Dvořák, L., Bezděčka, P. & Tyrner, P. 2010. Blanokřídlí České Republiky I., Žahadloví, 2nd ed. [Hymenoptera of the Czech Republic I., Stingwings, 2nd ed.]. – Academia, Praha (in Czech)
Møller, A. P., Czeszczewik, D., Flensted-Jensen, E., Erritzøe, J., Krams, I., Laursen, K., Liang, W. & Walankiewicz, W. 2021. Abundance of insects and aerial insectivorous birds in relation to pesticide and fertilizer use. – Avian Research 12(1): 1–9. DOI: 10.1186/s40657-021-00278-1
Pyke, G. H., Inouye, D. W. & Thomson, J. D. 2011. Activity and abundance of bumble bees near Crested Butte, Colorado: diel, seasonal, and elevation effects. – Ecological Entomology 36(4): 511–521. DOI:10.1111/j.1365-2311.2011.01295.x
Raković, M., Bjelica, V. & Novčić, I. 2024. The nest position and bank height of a bee-eater colony affect the likelihood of nest loss due to predation. – Journal of Ornithology 165(4): 1085–1089. DOI: 10.1007/s10336-024-02191-y
Scheuchl, E. 2000. Illustrierte Bestimmungstabellen der Wildbienen Deutschlands und Österreichs. Band I: Schlüssel der Gattungen und der Arten der Familie Anthophoridae. 2. erweiterte Auflage [Illustrated identification tables of the wild bees of Germany and Austria Vol. 1. Key to the genera and species of the family Anthophoridae]. – Velden, Selbstverlag (in German)
Seifert, B. 2017. The ecology of Central European non-arboreal ants – 37 years of a broad spectrum analysis under permanent taxonomic control. – Soil Organisms 89(1): 1–67.
Spiller, K. J. & Dettmers, R. 2019. Evidence for multiple drivers of aerial insectivore declines in North America. – Condor 121(2): duz010. DOI: 10.1093/condor/duz010
Tallamy, D. W. & Shriver, W. G. 2021. Are declines in insects and insectivorous birds related? – Condor 123(1): duaa059. DOI: 10.1093/ornithapp/duaa059
Ullmann, A., Bastian, A. & Bastian, H-V. 2017. Nahrungsangebot und Nestlingsnahrung des Bienenfressers Merops apiaster in drei Kolonien in Rheinland-Pfalz [Food availability and nestling diet of European Bee-eaters Merops apiaster in three colonies in Rheinland-Pfalz]. – Vogelwarte 55(3): 177–185. (in German with English Summary)