03/27/2026
There are probably over two hundred species of animal living on your property right now. You can name maybe fifteen.
That's not a guess. Backyard surveys consistently find that number when trained observers spend a full day inventorying a typical suburban lot during peak spring.
Here's how the count builds.
Birds — you know the robin, the cardinal, the chickadee. But you probably missed the Brown Creeper spiraling up your oak, the warbler passing through this week, the kinglet in the top of the holly. Most people recognize eight or ten bird species on their property. The actual number is usually three to four times higher.
Mammals — you see the squirrel and the chipmunk. You don't see the mice in the stone wall, the shrew under the leaf litter, the bat in the soffit gap, the mole whose tunnels you curse. They're nocturnal, underground, or just smaller than your attention threshold.
Insects — this is where the count explodes. A single mature oak hosts hundreds of caterpillar and moth species. Your lawn has mining bees, ground beetles, wolf spiders, orb weavers, firefly larvae, and dozens of ant species you've never distinguished from each other.
Amphibians and reptiles — the garter snake under the porch, the tiny brown snake under the mulch, the toad in the garden, the treefrog in the oak, the turtle in the nearest pond. All within your property boundary or a short walk from it.
Other invertebrates — earthworms, slugs, millipedes, centipedes, pill bugs, snails, harvestmen, and animals you'd need a hand lens to identify. A single square foot of healthy soil contains more species than your entire house.
Your property isn't a lawn with some animals on it. It's a two-hundred-species ecosystem with a lawn on top.
🌿 The bioblitz challenge — this weekend:
- Walk your yard slowly and write down every species you can identify by sight, sound, or evidence. Bird song counts. A spider web counts. A mole tunnel counts. Tracks in mud count
- Check every layer — canopy, shrubs, ground, under rocks, under logs, at the base of your house. Each layer has residents the others don't
- Go out again after dark with a flashlight. The night shift adds species you'll never see during the day — moths at the porch light, toads on the patio, spiders rebuilding webs
- Listen at dawn and again at dusk. The acoustic species list changes completely between those two windows
- Write down everything you can't identify too. A photo of an unknown beetle or an unrecognized bird call is a species on your list even if you don't have the name yet. You can look it up later
- Most people hit fifteen to twenty species on the first pass and are surprised when the list reaches forty or fifty by the end of the day. The full count — if you had a specialist for every group — would be several times higher
The list will surprise you. Your yard already did the hard part 🌿
