Sorry for the confusion! My previous answer was probably based on an error in interpretation or in the picture we were discussing together (maybe in another thread).

Since I don’t see the specific picture or puzzle you’re referring to here at the moment, I can’t confirm the number of birds.

To solve this correctly:

If you have a picture in front of you: Try to see if some birds are hiding in leaves, shadows, or if the bodies of two birds merge into one. Often in these puzzles there are “bonus” birds hidden in the contours of branches.

Regarding the math puzzle: Please write me its exact wording.

Can you upload the picture or describe the puzzle for me? I’d be happy to look at it again, this time with more attention to detail!