Robuta

https://journals.lub.lu.se/os/article/view/19554 Breeding prerequisites for Ortolan Bunting Emberiza hortulana in Swedish farmland with special... ortolan bunting emberiza hortulana https://journals.lub.lu.se/os/article/view/19533 Second known record of polygyny in Ortolan Bunting Emberiza hortulana | Ornis Svecica https://journals.lub.lu.se/os/article/view/19596 Distribution and habitat choice of the Ortolan Bunting Emberiza hortulana in Sweden | Ornis Svecica distribution and habitat