To me, this provided proof that there are frogs common to all ponds, but different types may be found in each. Since I hadn't been there, I headed to Oasis Springs park and found all the missing ones. After several runs, my Frog collection was missing Spotted Heart, Heartsurfer, Dirtwhirl, Whirlyflower, and the Bullseye frog. Afteward, a trip to Sylvan Glade provided some new types of Frogs. I first hit up the park in Willow Creek and got a good portion of my collection, probably about half. The best way to do it is to use the three ponds in the game.
You may have some luck here and there, but overall scouring each neighborhood for logs is just too time consuming. Check out my many mods here! Ponds are the best places to find Frogs Explore My Mods! Color Picker for Builders, Seasons Tuner, Dine Out Reloaded and a Gameplay Overhaul! Like other modders, I've been working to make The Sims 4 a better game.