rainbowgardener wrote: ...... Could be bird pecks, except birds would have no reason to peck tomato leaves...
I'm not sure about that.
My garden once had major damage from deer. There was plenty of tracks to identity them.
What did they want? Tomato foliage. The ripe fruit had just been picked. Some green fruit was pulled off the plants. It looked like the deer just crushed the green tomatoes and dropped the, all of them.
At another time, deer ate potato foliage. I know that these leaves of nightshade have toxins but they were eaten while other plants were not. The deer didn't get the message. The leaf damage shown in the pictures also looks to me to be what birds cause, especially with TomatoGirl's report over several days of not being able to find other pests. Unless it's extensive damage somewhere else on the plants, I don't think it has done much harm to them.
Make everything as simple as possible but not simpler. ~ Albert Einstein