Nothing to do with birding unfortunately but something that might well affect KenyaBirdsNet

Yahoo has made the decision to no longer
allow users to upload content to the Yahoo Groups site. Beginning October 21,
you won't be able to upload any more content to the site, and as of December 14
all previously posted content on the site will be permanently removed. You'll
have until that date to save anything you've uploaded.
 
 
https://help.yahoo.com/kb/groups/SLN31010.html

I have no solutions immediately available to suggest.

regards

Ben Allen