Mathias Ritschard
![Profile picture](https://www.orniverse.com/uploads/profile_pictures/thumb/1698674057_1691391981_1548443903_Foto_Mathias2.jpg)
About me:
Professional ornithologist and avid birder from Switzerland.
Website:
https://www.orniverse.com
Connect with me
About me:
Professional ornithologist and avid birder from Switzerland.
Website:
https://www.orniverse.com
Connect with me