Sibling cooperation in boreal owls during the post-fledging dependence period
Marek Kouba, Simona Stehlíková Sovadinová, Filip Tulis, Michal Ševčík, Jitka Bartošová, Erkki Korpimäki, Luděk Bartoš · 2026
Read Sibling cooperation in boreal owls during the post-fledging dependence period by Marek Kouba, Simona Stehlíková Sovadinová, Filip Tulis, Michal Ševčík, Jitka Bartošová, Erkki Korpimäki, Luděk Bartoš (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13352694.txt.
Description
Marek Kouba and co-authors present a 2026 study of how young boreal owl siblings act once they leave the nest. Fledged young still lean on parents for food, and siblings stay near each other through that span. Four takes could explain the closeness, from food fights to shared guard duty.
The team radio-tracked 123 fledglings from thirty-four nests over six years in Czechia and Finland. Gaps between siblings ran wider in Czechia, day and night. Gaps grew with age and flock size at night, yet shrank by day, which sorts the rival takes against each other.
Catalog record
| CREATOR | Marek Kouba, Simona Stehlíková Sovadinová, Filip Tulis, Michal Ševčík, Jitka Bartošová, Erkki Korpimäki, Luděk Bartoš |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 88 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |