The role of a synanthropic bird in the nest niche expansion of a secondary cavity-nester to man-made structures

Jing-Chia Guo, Jo-Szu Tsai, Jhih-Syuan Wang, Ya-Wen Lin, Pei-Jen Shaner & Chih-Ming Hung
Species with similar ecological characters often compete with each other; however, a species may also facilitate the survival or reproduction of another ecologically similar species although such interaction is rarely documented in birds. Here we reported a facilitative species interaction between Asian house martins (Delichon dasypus) and russet sparrows (Passer cinnamomeus), both passerines using closed nests, in a montane farming area of Taiwan. We found that Asian house martins constructed dome-shaped nests in human houses...
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