Entangled in fibers: a preliminary study of a great tit’s (Parus major) fatal encounter with anthropogenic nesting material

Animals often incorporate anthropogenic materials into their nests, a behavior that is increasingly common as human activities expand and alter natural habitats. Although such behavior in birds is well documented, studies frequently overlook visual documentation of the nests and the chemical charact...

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Main Authors: A. Winiewicz, W. Mierzejewska, M. Nartowicz, A. Syguła, A. Hryszko, L. Kabacińska, M. Karpiesiuk, J. Kościelniak, A. T. Dubis, K. Deoniziak
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:The European Zoological Journal
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Online Access:https://www.tandfonline.com/doi/10.1080/24750263.2025.2509622
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author A. Winiewicz
W. Mierzejewska
M. Nartowicz
A. Syguła
A. Hryszko
L. Kabacińska
M. Karpiesiuk
J. Kościelniak
A. T. Dubis
K. Deoniziak
author_facet A. Winiewicz
W. Mierzejewska
M. Nartowicz
A. Syguła
A. Hryszko
L. Kabacińska
M. Karpiesiuk
J. Kościelniak
A. T. Dubis
K. Deoniziak
author_sort A. Winiewicz
collection DOAJ
description Animals often incorporate anthropogenic materials into their nests, a behavior that is increasingly common as human activities expand and alter natural habitats. Although such behavior in birds is well documented, studies frequently overlook visual documentation of the nests and the chemical characterization of the anthropogenic materials used in their construction. This paper presents an observation of a single incubating female great tit (Parus major), a common urban dweller, that became fatally entangled in anthropogenic materials used for nest construction. We provide visual documentation of the nest, the bird carcass, and the observed anthropogenic waste, along with chemical characterization to identify its synthetic origin. During nest box maintenance in autumn 2023, anthropogenic materials were observed in 2 out of the 20 occupied nests. One nest was built with a mixture of natural and anthropogenic materials. A dead female bird was found on top, entangled by the leg in plastic fibers, along with six eggs. The fibers, observed in the nest cup surrounding the eggs, were red, purple, turquoise, and white, accounting for 2.68% of the total nest weight. Using Fourier transform infrared spectroscopy, we identified the fibers as polyester, polyamide, polypropylene, and nylon-polypropylene, which are common polymers in the textile industry. Our observations show how entanglement in anthropogenic materials used for nest construction can be detrimental to birds.
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series The European Zoological Journal
spelling doaj-art-fad907f6ed6e46da835a9d08b23febd12025-08-20T02:32:05ZengTaylor & Francis GroupThe European Zoological Journal2475-02632025-12-0192166066810.1080/24750263.2025.2509622Entangled in fibers: a preliminary study of a great tit’s (Parus major) fatal encounter with anthropogenic nesting materialA. Winiewicz0W. Mierzejewska1M. Nartowicz2A. Syguła3A. Hryszko4L. Kabacińska5M. Karpiesiuk6J. Kościelniak7A. T. Dubis8K. Deoniziak9The Włodzimierz Chętnicki Biological Science Club, Faculty of Biology, University of Bialystok, Białystok, PolandThe Włodzimierz Chętnicki Biological Science Club, Faculty of Biology, University of Bialystok, Białystok, PolandThe Włodzimierz Chętnicki Biological Science Club, Faculty of Biology, University of Bialystok, Białystok, PolandThe Włodzimierz Chętnicki Biological Science Club, Faculty of Biology, University of Bialystok, Białystok, PolandThe Włodzimierz Chętnicki Biological Science Club, Faculty of Biology, University of Bialystok, Białystok, PolandThe Włodzimierz Chętnicki Biological Science Club, Faculty of Biology, University of Bialystok, Białystok, PolandThe Włodzimierz Chętnicki Biological Science Club, Faculty of Biology, University of Bialystok, Białystok, PolandThe Włodzimierz Chętnicki Biological Science Club, Faculty of Biology, University of Bialystok, Białystok, PolandFaculty of Chemistry, University of Bialystok, Białystok, PolandDivision of Biodiversity and Behavioural Ecology, Faculty of Biology, University of Bialystok, Białystok, PolandAnimals often incorporate anthropogenic materials into their nests, a behavior that is increasingly common as human activities expand and alter natural habitats. Although such behavior in birds is well documented, studies frequently overlook visual documentation of the nests and the chemical characterization of the anthropogenic materials used in their construction. This paper presents an observation of a single incubating female great tit (Parus major), a common urban dweller, that became fatally entangled in anthropogenic materials used for nest construction. We provide visual documentation of the nest, the bird carcass, and the observed anthropogenic waste, along with chemical characterization to identify its synthetic origin. During nest box maintenance in autumn 2023, anthropogenic materials were observed in 2 out of the 20 occupied nests. One nest was built with a mixture of natural and anthropogenic materials. A dead female bird was found on top, entangled by the leg in plastic fibers, along with six eggs. The fibers, observed in the nest cup surrounding the eggs, were red, purple, turquoise, and white, accounting for 2.68% of the total nest weight. Using Fourier transform infrared spectroscopy, we identified the fibers as polyester, polyamide, polypropylene, and nylon-polypropylene, which are common polymers in the textile industry. Our observations show how entanglement in anthropogenic materials used for nest construction can be detrimental to birds.https://www.tandfonline.com/doi/10.1080/24750263.2025.2509622Macroplasticsentanglementnestplastic pollutionPasseriformes
spellingShingle A. Winiewicz
W. Mierzejewska
M. Nartowicz
A. Syguła
A. Hryszko
L. Kabacińska
M. Karpiesiuk
J. Kościelniak
A. T. Dubis
K. Deoniziak
Entangled in fibers: a preliminary study of a great tit’s (Parus major) fatal encounter with anthropogenic nesting material
The European Zoological Journal
Macroplastics
entanglement
nest
plastic pollution
Passeriformes
title Entangled in fibers: a preliminary study of a great tit’s (Parus major) fatal encounter with anthropogenic nesting material
title_full Entangled in fibers: a preliminary study of a great tit’s (Parus major) fatal encounter with anthropogenic nesting material
title_fullStr Entangled in fibers: a preliminary study of a great tit’s (Parus major) fatal encounter with anthropogenic nesting material
title_full_unstemmed Entangled in fibers: a preliminary study of a great tit’s (Parus major) fatal encounter with anthropogenic nesting material
title_short Entangled in fibers: a preliminary study of a great tit’s (Parus major) fatal encounter with anthropogenic nesting material
title_sort entangled in fibers a preliminary study of a great tit s parus major fatal encounter with anthropogenic nesting material
topic Macroplastics
entanglement
nest
plastic pollution
Passeriformes
url https://www.tandfonline.com/doi/10.1080/24750263.2025.2509622
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