When viewing the deletion log it should be possible to filter the view to only edits made by a human or edits made by a bot, as on Special:RecentChanges.
|Open||None||T120764 Improve Special:Log|
|Open||None||T109262 Allow users to filter log entries by type (tracking)|
|Duplicate||None||T248845 Allow filtering deletion log to only human or bot edits|
This could be hard as the information is not stored if the log entry (the deletion) was made by an account using the bot flag.
The api delete does not have a bot flag, I would assume there is no way to have a botflag for log entries like deletion.
That means nothing to filter for bot or non-bot actions on Special:Log
The meaning of "bot" on Special:RecentChanges does not mean "done by a bot account", it is more than "done with a bot flag"