Backyard Bird Egg Identification

Why bird egg identification matters.

Backyard bird egg identification.

These traits can help you identify the species even if the bird itself isn t present. Bird species use different building materials to create nests of various shapes and sizes and the eggs they lay differ in shape markings colors and size. Birders are naturally curious to identify the birds they see and identifying bird eggs is part of that curiosity for birdhouse landlords identifying eggs can help them understand which birds prefer their houses and they can adjust the foods they offer and how bird friendly their yard is to better suit each feathered family. Western bluebird ash throated flycatcher tree swallow house sparrow oak titmouse house finch american kestrel ruby throated hummingbird american robin carolina wren northern cardinal and northern mockingbird.

The surface of eggs laid by wild backyard birds have a remarkably wide variety of textures. Predators such as foxes or magpies may carry them away as do parent birds often to help conceal the location of vulnerable babies. Eggshells don t just fall out of a nest. The audubon bird guide is a free and complete field guide to more than 800 species of north american birds right in your pocket.

Or you can use our backyard bird identification guide below to help you. Many of them are smooth but just as many can be covered in tiny dimples or feel pebbly. Birds that build their nests in trees and shrubs like dunnock and blackbird generally have blue or greenish eggs either spotted or unspotted. Bird egg and nest identification with photos and comparisons.

Some wild backyard bird eggs have ridges and ripples. What bird is that. The eggs are a pale bluish green with few black spots and a smooth somewhat glossy surface. But other pigments can create different colours and patterns.

This features pictures and details of all the most common backyard birds of north america. Backyard bird identification guide american crow. Consult our bird identification guide to id mystery birds in the backyard and beyond. Learn how to identify birds eggs with our expert guide including which species it came from and where you are most likely to see birds eggs.

The female incubates the eggs for 12 to 14 days and the young leave the nest about 11 to 19 days after hatching. Then you can later check your field guide to try and identify the bird armed with all the information you need. More guides resources john james audubon s birds of america. Eggs are laid from february through august two or more broods per year with 2 to 6 eggs per brood.