Free Tools
Interactive calculators built for backyard birding, bird feeding, and attracting wild birds how-tos. No sign-up, no downloads — enter your numbers and get an answer you can act on.
Hummingbird Nectar Calculator
Get the exact sugar and water amounts for safe hummingbird nectar at the correct 1:4 ratio, no dye or honey needed.
Bird Seed Quantity & Cost Calculator
Estimate how many pounds of seed, bags, and dollars your feeder setup uses per month based on capacity and refill rate.
Birdhouse Entrance Hole Size Guide
Look up the correct entrance hole diameter, floor size, and box height for the species you want to house.