Museum Koenig Bonn
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Home > Research > Research Centres and Groups > Centre of Taxonomy and Evolutionary Research (zte) > Vertebrata Department > Ornithology

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Research [23] › Research Centres and Groups [1] › Centre of Taxonomy and Evolutionary Research (zte) [2] › Vertebrata Department [4] › Ornithology

Ornithology (Birds)

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History. The ornithological collection stretches across two centuries of ornithological research and collecting. Alexander Koenig, the museum’s founder and director, began collecting specimens in the 1870’s. His bird collection, and notably the bird egg collection, became the nucleus of today’s Museum Koenig. Being an avid collector, Alexander Koenig (1858-1940) invested both his wealth and his personal dedication to the expansion of the bird collection and the growth of the museum as a research institution. Since then, there have been stages of extensive growth resulting from acquisitions of large private collections. Exchanges of specimens and first-hand collecting added to both the diversification of the collection and expansion of specimen series.

Collection. The majority of the ornithological collection consists of dry-preserved specimens. Currently, there are about 76,000 study skins, 9,000 mounted specimens, 8,000 skeletons, 14,000 feather specimens as well as Germany’s largest egg collection which includes about 85,000 eggs. An additional 1,700 bird nests plus a few hundred alcohol specimens are also part of the collection. Cross-referenced sub-samples of organ or tissue material are maintained in the museum’s biobank. The type specimens in the ornithological collection represent 322 scientific bird names. The geographical foci of the collection are the Palaearctic, the Afrotropic and the Neotropic. Taxonomically, finches (Fringillidae), weavers (Ploceidae) and hummingbirds (Trochilidae) are very well-represented. Of significant scientific importance are local specimen series (study skins, feathers, eggs) that represent insightful cross-sections of population variations at a particular place and time. Using modern analytical methods, these series allow comparative studies with extant populations from the same single locality. The ongoing digitisation of the collection facilitates the physical and digital retrieval of specimens and their accompanying documentation.

Research. Currently, the Section Ornithology focuses on collection-based research in the fields of systematics, taxonomy, phylogenetics and zoogeography of birds using combined comparative methods (molecular genetics, morphology, ecology). However, our research is not limited to the museum’s collection. It also includes field work with a focus on the Horn of Africa, complementing the museum’s existing research and collection tradition in Afrotropical ornithology. The main emphasis of these studies is on endemic bird populations with limited or isolated distributions. Such research can only be realized in close collaboration with regional partners, ranging from universities to non-governmental organisations.

Staff

Scientist, permanent position

[26]
Dr. Till Töpfer [26]
Head of Section Ornithology, Curator
Tel: +49 228 9122-246
Fax: +49 228 9122-212
E-Mail: t.toepfer [at] leibniz-zfmk.de

Technical or laboratory assistant

[27]
Devon Putnam [27]
Collection technician
Tel: +49 228 9122-232
Fax: +49 228 9122-212
E-Mail: d.putnam [at] leibniz-zfmk.de

Scientist, visiting

[28]
Dr. Kai Gedeon [28]
Research Associate
E-Mail: k.gedeon [at] gmail.com

Ph.D. student

[29]
Abadi Mehari Abrha [29]
PhD student
E-Mail: abmehari23 [at] gmail.com
[30]
Dr. Antonia Albrecht [30]
PhD student
Tel: +49 228 9122-239
Fax: +49 228 9122-212
E-Mail: a.albrecht [at] leibniz-zfmk.de
[31]
Kathrin Burs [31]
PhD student
Tel: +49 228 9122-239
Fax: +49 228 9122-212
E-Mail: k.burs [at] leibniz-zfmk.de
[32]
Gabriele Droege [32]
PhD student
E-Mail: G.Droege [at] bgbm.org
[33]
Lydia Möcklinghoff [33]
PhD student
Tel: +49 228 9122-239
Fax: +49 228 9122-212
E-Mail: moecklinghoff.zfmk [at] uni-bonn.de
[34]
Kathrin Schidelko [34]
PhD student
Tel: +49 228 9122-230
Fax: +49 228 9122-212
E-Mail: k.schidelko [at] leibniz-zfmk.de
[35]
Darius Stiels [35]
PhD student
Tel: +49 228 9122-230
Fax: +49 228 9122-212
E-Mail: d.stiels [at] leibniz-zfmk.de

MSc or Diploma Candidate

[36]
Max Lehmann [36]
MSc student
Tel: +49 228 9122-239
Fax: +49 228 9122-212
E-Mail: maxlehmann [at] web.de

Bachelor Candidate

[37]
Marie Elisabeth Baldhoff [37]
BSc student
Fax: +49 228 9122-212
E-Mail: s6mabald [at] uni-bonn.de

Honorary capacity

[38]
Matthias Overmann [38]
Volunteer
Tel: +49 228 9122-239
Fax: +49 228 9122-212
E-Mail: m.overmann [at] leibniz-zfmk.de
Alumni

Former staff members

[39]
Dr. Renate van den Elzen [39]
Former Curator
E-Mail: renate [at] elzen.de
[40]
Dr. Olaf Jahn [40]
Former researcher (third-party funded)
E-Mail: olaf.jahn [at] mfn.berlin
[41]
Prof. Dr. Karl-Ludwig Schuchmann [41]
Former curator
Tel: +49 228 9122-238
Fax: +49 228 9122-212
E-Mail: kl.schuchmann [at] leibniz-zfmk.de

Former students

[42]
Frederik Albrecht [42]
Former MSc student
E-Mail: info [at] zfmk.de
[43]
Soham Dixit [43]
Former MSc student
E-Mail: info [at] leibniz-zfmk.de
[44]
Jessica Jung [44]
Former MSc student
E-Mail: j.jung [at] leibniz-zfmk.de
[45]
Julian Kokott [45]
Former MEd student
E-Mail: j.kokott [at] leibniz-zfmk.de
[46]
Sandra Krueger [46]
Former MSc student
E-Mail: sa-krueger [at] gmx.de
[47]
Carolina Ortiz Movliav [47]
Former MSc student
E-Mail: carolina.ortizmovliav [at] uni-greifswald.de
[48]
Dr. Anna Phillips [48]
Former PhD student
E-Mail: agm.phillips [at] gmail.com
[49]
Manuel Püttmanns [49]
Former MSc student
E-Mail: info [at] leibniz-zfmk.de
[50]
Liyang Zhao [50]
Former BA student, Visitor service
E-Mail: l.zhao [at] leibniz-zfmk.de
Projects

Currently, the Section Ornithology focuses on collection-based research in the fields of systematics, taxonomy, phylogenetics and zoogeography of birds using combined comparative methods (molecular genetics, morphology, ecology). However, our research is not limited to the museum’s collection. It also includes field work with a focus on the Horn of Africa, complementing the museum’s existing research and collection tradition in Afrotropical ornithology.

2020

[51]

Behaviour of Edwards’s Pheasant [51]

The Edwards’s Pheasant Lophura edwardsi is an endemic galliform species of the Central Vietnamese lowland forests where it has not been observed since 2000.
Project lead:
Dr. Till Töpfer [26]
[52]

Avian tail feathers [52]

In this project, we study the number, form and function of the tail feathers (rectrices) of all bird families from an evolutionary perspective.
Project lead:
Dr. Till Töpfer [26]

2019

[53]

Effects of land use and climate change on Ethiopian francolins [53]

In this project we study two Ethiopian francolin species, focusing on proper conservation and land use management.
Project lead:
Abadi Mehari Abrha [29]
Funding:
German Academic Exchange Service
[54]

Sexing of Rose-ringed Parakeets [54]

In this project, we are looking for a method of identifying the sexes of juvenile Rose-ringed Parakeets based on morphological characteristics.
Project lead:
Dr. Till Töpfer [26]
[55]

Parrot diversification [55]

This study aims to understand morphological variation and its potential influence on the distribution of 26 species of Neotropical parrots along an elevation gradient in the Manú National Park in southern Peru.
Project lead:
Dr. Till Töpfer [26]
Funding:
Alexander-Koenig-Society e.V.

2018

[56]

SolBioM [56]

The main objective of the BMBF-funded project is the diversification of an international research consortium, consisting mainly of partners from Eastern and Southeastern Europe, in order to apply for funding for a multinational R&D project within the framework of Horizon 2020 or other EU programme.
Project lead:
Prof. Dr. J. Wolfgang Wägele [57]
Funding:
Federal Ministry of Education and Research

2017

[58]

Nutcracker adaptation [58]

In this project, we investigate different nutcracker subspecies by comparing diet and other ecological traits using classical morphometric measurements and digital three-dimensional methods.
Project lead:
Dr. Till Töpfer [26]
[59]

Oystercatcher phylogeny [59]

This study looks at using mitochondrial genes to construct a first comprehensive phylogenetic tree for the oystercatchers (Haematopodidae), a monotypic family of waders with worldwide distribution.
Project lead:
Dr. Till Töpfer [26]
[60]

Structure of owl flight feathers [60]

In this project, we study the structure of serrated flight feather fringes of various owl species.
Project lead:
Dr. Till Töpfer [26]

2016

[61]

BIOMON [61]

The main objective of the BMBF-funded project was to establish an international research consortium, consisting mainly of partners from Eastern and South-eastern Europe, in order to apply for funding for a multinational R&D project within the framework of Horizon 2020 or other EU programme.
Project lead:
Prof. Dr. J. Wolfgang Wägele [57]
Funding:
Federal Ministry of Education and Research
[62]

Didactical preparation of the collection Otto Kleinschmidt [62]

Using the ornithological collection of Otto Kleinschmidt (1870-1954) we analyse the use of its bird specimens for the presentation of the theories of biogeography and species definition as developed by Kleinschmidt.
Project lead:
Dr. Till Töpfer [26]

2015

[63]

Sound library of the Western Rock Nuthatch [63]

In this project, we are creating high-quality sound libraries to facilitate the subsequent development of an automated sound recognizer for the Western Rock Nuthatch Sitta neumayer.
Project lead:
Dr. Till Töpfer [26]
Funding:
Alexander-Koenig-Society e.V.
[64]

Lateral apteria of the avian head [64]

This study looks at a previously unstudied adaptation of birds that uses exposed surfaces of facial skin and lateral head apteria (apteria temporalia) allowing the emission of body heat in hot, arid environments.
Project lead:
Dr. Till Töpfer [26]
Funding:
Alexander-Koenig-Society e.V.
[65]

Treepie systematics [65]

The aim of this study is to examine the relationships within and between Treepies and Oriental Magpies based on morphological, molecular, and biogeographical data.
Project lead:
Gabriele Droege [32]
[66]

Rock Nuthatch song variability [66]

This is an investigation of the understudied song inventory of the Western Rock Nuthatch, Sitta neumayer, to identify song types and song structures of a nuthatch population in Greece. The aim of this study is to document the vocal variability of the Western Rock Nuthatch and discuss its ecological context.
Project lead:
Dr. Till Töpfer [26]
[67]

Rictal bristles in birds [67]

Rictal bristles apparently evolved convergently in many different bird families without necessarily having the same function. The aim of this comparative project is to interpret the occurrence of rictal bristles among different bird families with respect to their phylogeny and ecology.
Project lead:
Dr. Till Töpfer [26]
[68]

Kingfisher diversification [68]

In this project we analyze the diversification and adaptation of kingfishers (Alcedinidae). The aim of the project is to explain the variationoccurrence of specific body structuresplans and feeding habits as well as the occurrence of certain species in different habitats.
Project lead:
Dr. Till Töpfer [26]

2014

[69]

Ecomorphology in birds [69]

In this project we investigate the evolution of ecomorphological traits in eight avian clades and link them to their ecology. We combine macroecological and macroevolutionary perspectives to provide an improved understanding of the processes that shape the evolution of ecological niches in response to changing environmental conditions, and therefore ultimately determine whether there is a correlation between the evolution of climatic niches and trait evolution.
Project lead:
Dr. Till Töpfer [26]
[70]

Sandgrouse feather evolution [70]

This is an investigation of the potential water absorption capacity of sandgrouse feathers (Pteroclididae). The aim of this research is to develop phylogenetic hypotheses on the evolution of the different water absorption capacities of the different species in an ecological context.
Project lead:
Dr. Till Töpfer [26]
Funding:
Alexander-Koenig-Society e.V.
[71]

Wildlife Research Okomitundu [71]

Analysing the impact of different landuse on mammals, birds and reptiles in the arid Otjimbinge Area of Namibia.
Project lead:
Dr. Renate van den Elzen [39]
[72]

A three-dimensional assessment of bird eggs [72]

In this pilot project we examine bird eggs of the Museum Koenig’s extensive egg collection using a white light scanner, focusing on a large set of clutches of Common Terns (Sterna hirundo) and Gull-billed Terns (Gelochelidon nilotica).
Project lead:
Dr. Till Töpfer [26]

2013

[73]

INAU project: Monitoring bio-indicators and migratory birds in the Pantanal [73]

INAU project 3.14, Lab. 3, Biodiversity and Ecological Processes (2013-2016): Monitoring bio-indicators and migratory birds in the Pantanal. Applied acoustomics – a tool for bio-sustainability assessment.
Project lead:
Prof. Dr. Karl-Ludwig Schuchmann [41]
Funding:
Brehm Fund, National Council for Scientific and Technological Development
[74]

Plumage carotenoids in bullfinches [74]

In this project we combine data on plumage colouration and the respective pathways of carotenoid synthesis with those of the molecular tree.
Project lead:
Dr. Till Töpfer [26]

2012

[75]

The phylogeny of Hymenopterans [75]

Hymenoptera are a mega-diverse order of endopterygote insects and encompass more than 120,000 described species.
Project lead:
Abadi Mehari Abrha [29]
[76]

Endemic francolins of Ethiopia [76]

This is an intensive study of the distribution and biology of one of the two endemic francolin species in Ethiopia, the Black-fronted Francolin, that inhabits the mountain ranges in the south of the country.
Project lead:
Dr. Till Töpfer [26]
Funding:
Zoological Research Museum Alexander Koenig, Gesellschaft für Tropenornithologie, Zoologische Gesellschaft für Arten- und Populationsschutz e.V., World Pheasant Association, Section Germany
[77]

Birds of Ethiopia [77]

In this project, we study selected Ethiopian bird species that are little-known in terms of distribution, lifestyle and threats.
Project lead:
Dr. Till Töpfer [26]
Funding:
Zoological Research Museum Alexander Koenig, Gesellschaft für Tropenornithologie, World Pheasant Association, Section Germany, Zoologische Gesellschaft für Arten- und Populationsschutz e.V., German Academic Exchange Service
[78]

Global Genome Biodiversity Network (GGBN) [78]

Establishing standards for the preservation of molecular samples and molecular biodiversity.
Project lead:
Dr. Jonas Astrin [79]
[80]

Migration strategy of the Tree Pipit [80]

Within the framework of my PhD, I am investigatinge the migratory pathways and wintering areas of the Tree Pipit, Anthus trivialis. In lightAgainst the background of declining breeding populations, the focus is on the question whether migratory pathways and wintering grounds differ between different European populations and which effects this might have on the fitness of the birds.
Project lead:
Dr. Antonia Albrecht [30]

2011

[81]

GBOL- German Barcode of Life [81]

"German Barcode of Life" ( GBOL ) is a project sponsored by the BMBF and includes the creation of inventories for the gentic characterization of the animals, fungi and plants of germany, using DNA-Barcodes.
Project lead:
Prof. Dr. J. Wolfgang Wägele [57]
Funding:
Federal Ministry of Education and Research

2010

[82]

GBIf-D-Vertebrata-2010 [82]

German Vertebrata node of the Global Biodiversity Information Facility
Project lead:
Dr. Till Töpfer [26]
Funding:
Federal Ministry of Education and Research
[83]

AmiBio [83]

Automatic acoustic Monitoring and Inventorying of Biodiversity.
Project lead:
Dr. Olaf Jahn [40]
Funding:
European Union

2009

[84]

Terrestrial mammals in the Brazilian Pantanal [84]

Camera traps and direct observations help to study terrestrial mammals in the Brazilian Pantanal.
Project lead:
Prof. Dr. Karl-Ludwig Schuchmann [41]
Publications
Format: 2022

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2022

de Raad, J., Päckert, M., Irestedt, M., Janke, A, Kryukov, A.P., Martens, J., Red’kin, Y.A., Sun, Y., Töpfer, T., Schleuning, M., Neuschulz, E.L. Nilsson, M.A. (2022): Speciation and population divergence in a mutualistic seed dispersing bird. – Communications Biology 5, 429.
[read more] [90]
Links:
Full text [91]
Tobias, J.A., Sheard, C., Pigot, A.L., Devenish, A.J.M., Yang, J., Sayol, F., Neate-Clegg, M.H.C., …, Töpfer, T., et al. (2022): AVONET: morphological, ecological and geographical data for all birds. - Ecology Letters 25: 581-597.
[read more] [92]
Links:
Full text [93]

2021

Barthel, T., Töpfer, T. (2021): Mögliche Winterbruten des Tannenhähers Nucifraga c. caryocatactes. - Vogelwarte 59: 1-6.
[read more] [94]
Dessalegn, A., Balakrishnan, M., Töpfer, T., Podsiadlowski, L., Wube, T. (2021): Genetic diversity of the Ankober Serin (Crithagra ankoberensis) at Simien Mountains National Park and Guassa Community Conservation Area, Ethiopia. – African Zoology 56: 273-278.
[read more] [95]
Links:
Full text [96]
Gedeon, K., Töpfer, T. (2021): Is there a hitherto undescribed martin (Hirundinidae: Riparia) in Ethiopia? - Bulletin of the African Bird Club 28: 27-36.
[read more] [97]
Koppetsch, T., Töpfer, T. (2021): Brief remarks on the phenotypic variability of White-shouldered Triller Lalage sueurii in comparison to White-winged Triller L. tricolor. - BirdingASIA 36: 61-64.
[read more] [98]
Milano, S., Frahnert, S., Hallau, A., Töpfer, T., Woog, F., Voigt, C.C. (2021): Isotope record tracks changes in historical wintering ranges of a passerine in sub-Saharan Africa. – Global Change Biology 27: 5460-5468.
[read more] [99]
Links:
Full text [100]
Overmann, M., Töpfer, T. (2021): Eurasian Eagle Owls Bubo bubo opportunistically prey on Stag Beetles Lucanus cervus. – Ornithological Science 20: 235-240.
[read more] [101]
Skoracki, M., Kosicki, J.Z., Sikora, B., Töpfer, T., Husek,J., Unsöld, M., Hromada, M. (2021): The occurrence of quill mites (Arachnida: Acariformes: Syringophilidae) on bee-eaters (Aves: Coraciiformes: Meropidae: Merops) of two sister clades. - Animals 11, 3500: 1-12.
[read more] [102]
Links:
Full text [103]
Töpfer, T. (2021): Nachhaltigkeit im Sammeln und Forschen in biologischen Sammlungen. – rheinform 01/2021: 8-11.
[read more] [104]
Links:
Download rheinform 01/2021 [105]
Töpfer, T. (2021): Die Zusammenarbeit von ornithologischer Forschung und Vogelhaltung. - In: Lantermann, W., Asmus, J. (eds.): Wildvogelhaltung. - Springer Spektrum (Heidelberg). pp. 109-119.
[read more] [106]
Wolfgramm, H., Martens, J., Töpfer, T., Vamberger, M., Pathak, A., Stuckas, H., Päckert, M. (2021): Asymmetric allelic introgression across a hybrid zone of the coal tit (Periparus ater) in the central Himalayas. – Ecology and Evolution 11: 17332-17351.
[read more] [107]
Links:
Full text [108]

2020

Elzen, R. van den, Töpfer, T. (2020): Vogeleier und Eiersammlungen im Museum Alexander Koenig. – Koenigiana 14: 81-90.
[read more] [109]
Hutterer, R., Töpfer, T. (2020): Rheinische Naturkundemuseen im Nationalsozialismus am Beispiel von Wuppertal und Bonn. - In: Landschaftsverband Westfalen-Lippe (ed.): Die Geschichte der Dinge. Zur Herkunft der Objekte in nordrhein-westfälischen Sammlungen. LWL (Münster). pp. 126-131.
[read more] [110]
Kasper, K., Schweikhard, J., Lehmann, M., Ebert, C., Erbe, P., Wayakone, S., Nguyen, T. Q., Le, M. D., Ziegler, T. (2020): The extent of the illegal trade with terrestrial vertebrates in markets and households in Khammouane Province, Lao PDR. - Nature conservation 41: 25-45
[read more] [111]
Kokott, J., Töpfer, T. (2020): Didaktisierung einer Sammlung – die ornithologische Sammlung Otto Kleinschmidt. - Verhandlungen zur Geschichte und Theorie der Biologie 22: 89-98.
[read more] [112]
Phillips, A., Töpfer, T., Böhning-Gaese, K., Fritz, S. (2020): Rates of ecomorphological trait evolution in passerine birds are independent of clade age. - Biological Journal of the Linnean Society 129: 543-557.
[read more] [113]
Links:
Full article [114]
Schweizer, M., Etzbauer, C., Shirihai, H ., Töpfer, T., Kirwan, G.M. (2020): A molecular analysis of the mysterious Vaurie’s Nightjar Caprimulgus centralasicus yields fresh insight into its taxonomic status. – Journal of Ornithology 161: 635-650.
[read more] [115]
Links:
Full text: Vaurie's Nightjar [116]
Töpfer, T. (2020): Great Auk (Pinguinus impennis) eggs in Bonn: correspondence between Emile Parzudaki and Robert Champley. – Archives of Natural History 47: 319-324.
[read more] [117]
Töpfer, T. (2020): Authenticity in natural history collections: reflections from a zoological research perspective. - In: Kimmel, D., Brüggerhoff, S. (eds.): Museen - Orte des Authentischen? RGZM-Verlag (Mainz). pp. 395-399.
[read more] [118]

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Collection

The majority of the ornithological collection consists of dry-preserved specimens. Currently, there are about 76,000 study skins, 9,000 mounted specimens, 8,000 skeletons, 14,000 feather specimens as well as Germany’s largest egg collection which includes about 85,000 eggs. An additional 1,700 bird nests plus a few hundred alcohol specimens are also part of the collection. Cross-referenced sub-samples of organ or tissue material are maintained in the museum’s biobank. The type specimens in the ornithological collection represent 322 scientific bird names.

[119]

The geographical foci of the collection are the Palaearctic, the Afrotropic and the Neotropic. Taxonomically, finches (Fringillidae), weavers (Ploceidae) and hummingbirds (Trochilidae) are very well-represented. Of particular importance are local series of North Atlantic seabirds and of raptors and songbirds from Central Germany dating from the early 20th century (Coll. A. Koenig and Coll. O. Kleinschmidt, resp.), as well as songbirds collected during the first half of the 19th century (Coll. C.L. Brehm).

[120]

 

Contents

[9]

Ornithological Library [9]

The library of the ornithological section is the biggest branch library of the ZFMK by far.

Contact person

[26]
Dr. Till Töpfer [26]
Head of Section Ornithology
Curator
Ornithology [121]
+49 228 9122-246
+49 228 9122-212
t.toepfer [at] leibniz-zfmk.de

Documents

File IconZFMK bird type catalogue [122]

Collection Management Vertebrata

[123]

The collection manager supports the sections in the organisation of the vertebrate collections.

to management [5]

Collection catalogue Ornithology

Digital catalogue of the ZFMK's ornithology collection

to catalogue [124]

Source URL:https://bonn.leibniz-lib.de/en/ornithology

Links
[1] https://bonn.leibniz-lib.de/en/research/research-centres-and-groups [2] https://bonn.leibniz-lib.de/en/research/research-centers-and-groups/centre-of-taxonomy-and-evolutionary-research [3] https://bonn.leibniz-lib.de/en/research/research-centers-and-groups/abteilung-arthropoda [4] https://bonn.leibniz-lib.de/en/research/research-centres-and-groups/department-vertebrates [5] https://bonn.leibniz-lib.de/en/research/research-centres-and-groups/collection-management [6] https://bonn.leibniz-lib.de/en/research/research-centers-and-groups/herpetology [7] https://bonn.leibniz-lib.de/en/ichthyologie-fische [8] https://bonn.leibniz-lib.de/en/ornithology [9] https://bonn.leibniz-lib.de/en/research/research-centres-and-groups/ornithological-library [10] https://bonn.leibniz-lib.de/en/theriologie-saugetiere [11] https://bonn.leibniz-lib.de/en/morphology-laboratory [12] https://bonn.leibniz-lib.de/en/research/research-centers-and-groups/centre-for-molecular-biodiversity-research-zmb [13] https://bonn.leibniz-lib.de/en/zbm [14] https://bonn.leibniz-lib.de/en/research/research-centres-and-groups/central-research-facilities [15] https://bonn.leibniz-lib.de/en/research/research-centres-and-groups/junior-research-groups [16] https://bonn.leibniz-lib.de/en/research/networks [17] https://bonn.leibniz-lib.de/en/research/education-and-promotion [18] https://bonn.leibniz-lib.de/en/research/collections [19] https://bonn.leibniz-lib.de/en/research/projects [20] https://bonn.leibniz-lib.de/en/research/publications [21] https://bonn.leibniz-lib.de/en/research/library [22] https://bonn.leibniz-lib.de/en/research/conferences-and-symposia [23] https://bonn.leibniz-lib.de/en/research [24] https://bonn.leibniz-lib.de/en/print/4844 [25] https://bonn.leibniz-lib.de/en/printmail/node/4844 [26] https://bonn.leibniz-lib.de/en/zfmk/till-topfer [27] https://bonn.leibniz-lib.de/en/zfmk/devon-putnam [28] https://bonn.leibniz-lib.de/en/zfmk/kai-gedeon [29] 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https://bonn.leibniz-lib.de/en/zfmk/sandra-krueger [47] https://bonn.leibniz-lib.de/en/zfmk/carolina-ortiz-movliav [48] https://bonn.leibniz-lib.de/en/zfmk/anna-phillips [49] https://bonn.leibniz-lib.de/en/zfmk/manuel-puttmanns [50] https://bonn.leibniz-lib.de/en/zfmk/liyang-zhao [51] https://bonn.leibniz-lib.de/en/research/projects/behaviour-of-edwardss-pheasant [52] https://bonn.leibniz-lib.de/en/research/projects/avian-tail-feathers [53] https://bonn.leibniz-lib.de/en/research/projects/effects-of-land-use-and-climate-change-on-ethiopian-francolins [54] https://bonn.leibniz-lib.de/en/research/projects/sexing-of-rose-ringed-parakeets [55] https://bonn.leibniz-lib.de/en/research/projects/parrot-diversification [56] https://bonn.leibniz-lib.de/en/research/projects/solbiom [57] https://bonn.leibniz-lib.de/en/zfmk/j-wolfgang-waegele [58] https://bonn.leibniz-lib.de/en/research/projects/nutcracker-adaptation [59] https://bonn.leibniz-lib.de/en/research/projects/oystercatcher-phylogeny [60] https://bonn.leibniz-lib.de/en/research/projects/structure-of-owl-flight-feathers [61] https://bonn.leibniz-lib.de/en/research/projects/biomon [62] https://bonn.leibniz-lib.de/en/research/projects/didactical-preparation-of-the-collection-otto-kleinschmidt [63] https://bonn.leibniz-lib.de/en/research/projects/sound-library-of-the-western-rock-nuthatch [64] https://bonn.leibniz-lib.de/en/research/projects/lateral-apteria-of-the-avian-head [65] https://bonn.leibniz-lib.de/en/research/projects/treepie-systematics [66] https://bonn.leibniz-lib.de/en/research/projects/rock-nuthatch-song-variability [67] https://bonn.leibniz-lib.de/en/research/projects/rictal-bristles-in-birds [68] https://bonn.leibniz-lib.de/en/research/projects/kingfisher-diversification [69] https://bonn.leibniz-lib.de/en/research/projects/ecomorphology-in-birds [70] https://bonn.leibniz-lib.de/en/research/projects/sandgrouse-feather-evolution [71] 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