Toad – Identifying Droppings

Q: I’m trying to figure if this animal dropping is from a toad or cat. I’m kinda not thinking cat because it’s on concrete every time and we have three labs so I don’t see cats often. We do have two large toads outdoors.
A: I think it comes from a toad. I can see lots of little shiny pieces of insect bodies and wings.
I have no clue how to keep them away from the concrete!