Backyard Biodiversity
Amphibians in suburban yards: who is there and how to help them
March 8, 2025 · 5 min read
Amphibians are the most cryptic vertebrates in most yards. They spend the day in leaf litter, under logs, in burrows, or underground and emerge at night to hunt insects. Detection is hard, but a surprising number of suburban yards support toads, tree frogs, and even salamanders.
Toads
American toads and their western cousins are the most common suburban amphibian across most of the country. They spend the day buried under mulch, boards, or logs, emerge at dusk, and can consume thousands of insects a season. A single garden toad is a substantial pest control asset.
Tree frogs
Gray tree frogs, spring peepers, and Pacific tree frogs are widespread but easier to hear than to see. Their calls carry hundreds of meters. If you hear peepers in spring or gray tree frogs on warm rainy nights, you almost certainly have breeding habitat nearby.
Salamanders
Redback salamanders live at surprisingly high density under logs and leaf litter in yards with mature trees and shade. They are entirely terrestrial and go completely unnoticed by most homeowners. Water eDNA and soil eDNA are the practical ways to confirm salamander presence without disruptive cover-object surveys.
How to keep them alive
Amphibians are chemically porous — pesticides absorb straight through their skin. Any mosquito adulticide, lawn treatment, or slug bait in your yard passes through them. Leaving leaf litter, brush piles, and shaded ground undisturbed provides the microhabitat they depend on.
Frequently asked questions
Do toads carry warts?
No. That is folklore. Their skin secretions can irritate mucous membranes, so wash hands after handling, but they are not harmful to touch briefly.