Received: 7 May 2020
Accepted: 3 September 2020
First Online: 14 September 2020
Ethics approval and consent to participate
: Permits for this research were issued by the Ethiopian Wildlife Conservation Authority (EWCA) and park management office.
: This manuscript does not contain any individual person’s data, and further consent for publication is not required/ applicable.
: I declare that no competing interests, because the research is done by only me.