These tree frogs are very common in our area. They can be deceiving to identify because they readily change color based on temperature and humidity. I often find one hanging out under our birdbath in the dark and it will be shades of brown and gray. This bright green one in the photo was taken in full sun. They feed on insects and caterpillars.
During the day we will find them seeking cover under the leaf litter and in the shade of our dense shrub plantings. The young adult toads are amazingly tiny and easy to miss, often not much larger than a pencil eraser in size.
The large diversity of native plants in our yard attracts more kinds of insects which in turn provides food for these amphibians (and birds).