Yesterday I visited Wildlife Safari Park, San Diego Zoo, and I set Subject Detection to "Cats" for the Sumatran Tigers. Today I took pictures of Oystercatchers mating, but forgot to change the Subject Detection to "Birds".
It doesn't appear to me that having the Wrong Subject Detection setting made any difference in the results. The Oystercatchers look ok to me.

after mating

mating
It doesn't appear to me that having the Wrong Subject Detection setting made any difference in the results. The Oystercatchers look ok to me.

after mating

mating