Start with a tool
Every tool gives you a personalized answer in seconds, then links to the full guide if you want the deep dive.
Hummingbird Nectar Calculator
Your feeder size → the exact 4:1 sugar-water recipe in cups, tablespoons and grams.
Use tool → 🍂When to Take Down Feeders
Fall takedown dates for all 50 states — don't pull yours too early.
Use tool → 🏠Birdhouse Dimensions
Exact hole size, floor and height for bluebirds, wrens, chickadees and more.
Coming this month 🌻Bird Seed Calculator
How much seed your feeders really need per month — and what it costs.
Coming this month 🔍Bird Identifier Wizard
Color, size, habitat, state — identify your mystery backyard bird.
Coming this month 🗓️Migration Calendar
When hummingbirds arrive and leave in your state, spring and fall.
Coming this monthLearn America's backyard birds
Profiles, feeding guides and identification help for the birds at your feeder — from House Finches to hummingbirds.
Why Birdiy?
Most birding answers online are buried in long articles and static charts. Birdiy builds interactive tools that answer your question — for your feeder, your species, your state — in seconds. USA-focused, beginner-friendly, and always free.