Neißkenwirth genannt Schroeder, S., P. Hundorf, H. Illner, H. Schmaljohann & R. Joest 2023: Population Increase, territorial behaviour and habitat choice of Corn Bunting Emberiza calandra in the SPA Hellwegbörde. Vogelwelt 141: Volume 4.

In the period from 1993 to 2022, the population of the Corn Bunting in the Westphalian Hellwegbörde initially decreased from a maximum of 169 territories in 1994 to no records in 2014 and 2015. Since then, it increased back to 27 territories in 2022. Since 1993, the sub-areas of Lohne and Westereiden have formed the two main occurrences of the species. In 2021, 33 territories were identified here with intensified recording, most of which were occupied at the beginning of June. The greatest singing activity and breeding records were not observed until the second half of the season from June to July, after the recommended survey period for this species. Corn buntings preferred self-greening fallow land, and to a lesser extent wildflower sown fallow, field grass and roads with and without trees, while winter cereals, woodlots, root crops, grain legumes and buildings were avoided. Habitat choice changed over time from a preference for field grass and grassland and to a lesser extent oilseed rape to fallow land and sometimes cereals. Various perches were used for singing. These were with a median distance of 406 m significantly further away from woodlands than a random distribution. The results show a differentiated use of the different types and allow adapted recommendations for species and nature conservation.

From Siberia to Indonesia: tracking the migration of the Arctic Warbler Phylloscopus borealis

https://link.springer.com/article/10.1007/s10336-024-02146-3

Little is known regarding the migration routes of Siberian songbird populations. Here we provide the first geolocator tracking data for an Arctic Warbler breeding in Central Siberia and compare its movements with eight long-distance ring recoveries of this species. In autumn, the tracked individual migrated eastward to a stopover site in eastern Siberia, before migrating southward through Taiwan to its non-breeding sites in the Philippines and Indonesia. During spring migration, the bird spent at least one month at stopover sites in Mongolia, before migrating to its breeding site in June. Ring recovery data confirmed the movement between the Central Siberian breeding grounds and stopover sites in northern Mongolia.