期刊
WILSON JOURNAL OF ORNITHOLOGY
卷 134, 期 3, 页码 473-484出版社
WILSON ORNITHOLOGICAL SOC
DOI: 10.1676/22-00009
关键词
avian nesting behavior; cytochrome oxidase I (COI) gene fragment sequencing; feather availability and habitat; feather identification; Hirundinidae; nest construction; nest lining
类别
资金
- Cope Environmental Center
- Earlham College through the James B. Cope Endowed Student-Faculty Vertebrate Zoology Field Research Fund
- Scantland family
- A. Simon
- Alphaeus Test Research Fund
- Gerald Bakker Collaborative Research Endowment Fund
- William Stephenson Student-Faculty Research Fund
The diversity of feathers used as nesting materials by Tree Swallows is greater than previously reported, with the birds being generalist feather collectors whose choice of feathers is influenced by availability in the surrounding environment.
Nest building represents an important part of parental investment and can significantly impact reproductive success in many bird species. Tree Swallows (Tachycineta bicolor) are secondary cavity nesters that readily accept nest boxes and construct basic grass nest cups lined with molted feathers from other bird species. We identified and described the characteristics of the feathers used as nesting materials by Tree Swallows in 4 different habitats in Indiana and Ohio. We monitored 41 nest boxes in 2017 and 53 nest boxes in 2018. After chicks fledged, we collected feathers from nests, counted them, and characterized them by size, color, and type. Brown, medium length (5-10 cm), and contour feathers were significantly more common than other types of feathers. We compared the prevalence and characteristics of feathers in nests across different habitat types, with results showing that nests located near lakes had significantly more feathers than those in agricultural habitats. We identified which species feathers belonged to using molecular techniques and morphological comparisons and found that they belonged to 26 species from 19 families and 11 orders: Galliformes, Anseriformes, Columbiformes, Gruiformes, Charadriiformes, Pelecaniformes, Accipitriformes, Strigiformes, Piciformes, Cathartiformes, and Passeriformes, including 20 previously unreported species within those orders. Thus, feathers used as nest lining by Tree Swallows are more diverse than previously reported. Feather identities from each habitat matched avian communities in those areas, suggesting that Tree Swallows are generalist feather collectors and that the number and characteristics of feathers used as lining depends on feather availability near the nesting site.
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