bird eggs

Bird Egg Identification Guide

Have you found eggshells in your garden, or around your local area? Discarded eggshells can actually tell us a lot about the birds that live around us.

If you find eggs, or eggshell, on the floor, it has likely been dropped there by a parent bird to stop predators being attracted to their newly hatched chicks, meaning it’s likely there are a few nesting birds nearby. But which breed of bird does the egg belong to? We have created this bird egg identification guide to help you find out!

Bird Egg Identifier


Robin Eggs

Robins tend to lay in April and have a clutch size of 4 – 5. Their eggs are white/cream in colour with light brown speckles and are usually quite small at about 2x.15cm each. American robins, on the other hand, lay blue eggs. This is where you may have heard the term ‘robin egg blue’ come from.

Learn more about robins here.


woodpigeon egg

Woodpigeons are larger than most common UK birds, with much larger eggs (about 4.1 x 2.9cm each). They can lay all year round, but only have a clutch size of 2.

Their eggs are smooth and white, with no distinctive markings.


Blackbird eggs

Blackbirds lay very pretty blue-green eggs which have light brown speckles. They lay 3 – 5 eggs at a time from early spring to mid-summer.


magpie eggs

Magpies are the centre of many superstitions. Their eggs are blue-green in colour with brown markings. They are a relatively average size at 3.2 x 2.3cm and are laid in clutches of 5 to 8. Magpie’s laying season is early April.


pheasant eggs

Pheasants are popular gamebirds with colourful, decorated plumage. Their eggs are an olive-brown colour with no markings. Pheasants lay an impressive 7 – 15 eggs per clutch, and their laying season extends across April to June.


Starling eggs

Starling lay pale blue eggs with no markings. Average size of these eggs is 2.1 x 3cm, and they lay clutches of 4 – 6 eggs. Their laying season is mid-April.

Song Thrush

song thrush eggs

Song thrush lay in early spring and have 3 – 5 eggs per clutch. Their eggs are a light blue colour with small black markings, and measure on average 2.7 – 2cm.

Willow Warbler

willow warbler eggs

Willow warblers lay white eggs with red/brown markings covering them. They usually lay over the months of April/May and have an average of 4 – 8 eggs per clutch.


Wren egg

Willow warblers lay white eggs with red/brown markings covering them. They Wren’s lay white/light brown eggs with brown markings. They are on average around 1.6 x 1.3cm each in size. The laying season of the wren is April.

House Sparrow

house sparrow egg

House sparrows’ eggs are a white/light grey colour with grey/brown markings across them. They are small in size at 2.2 x 1.6cm and are laid in clutch sizes of 4 – 5 during the month of May.



A jackdaw lays pale blue, whiteish eggs which have grey and brown markings. Their eggs are medium sized at 3.6 x 2.6cm each. Jackdaws lay clutches of 4 – 5 eggs from April to May.


chaffinch eggs

A chaffinch will lay its eggs in the month of April, producing a clutch size of 4-5 each time. Its eggs are off-white with brown/red splotches, and they are quite small.


goldfinch eggs

Goldfinch eggs are an off-white colour with red/brown speckles. They are around 1.7 x 1.3cm in size and are laid in clutches of 4 – 6 during late April.

Collared Dove

collared dove

Collared Dove eggs are white-cream in colour with no markings. They only lay 2 at a time, and their laying season is quite long – from early spring to late autumn.


jay eggs

Jay’s lay pretty pale blue-green, or olive, eggs during the months of April to July. They have a clutch size of 3 – 10, and their eggs measure on average 3.2 x 2.3cm each.


bullfinch eggs

Bullfinches laying season stretches across April to May. They lay light green-blue eggs with purple markings and have a clutch size of 4-5.

Learn more about bullfinches here.

What to do if you find a bird egg

If you find an egg, on the ground or otherwise, you should leave it alone. Once it is out of the nest, it is unlikely that it will hatch, and in any case, it’s illegal to take, possess or control wild bird eggs[i].

Additionally, you should not place the egg in another bird’s nest. This may cause the bird to reject the entire nest, leaving its whole clutch unhatched.

How can you help wild birds?

If you want to help your local wild birds, there are plenty of steps you can take. Transform your garden into a bird-friendly paradise by:

  • Provide a place to eat. Placing an array of bird feeders such as ground feeders and tables will give birds a safe place to eat.
  • Give them a variety of food. Suppling a mixture of nutritious bird seed and suet is a great way to keep birds fed and happy all year round.
  • Safe nesting spots. Birds will benefit greatly from having safe places to nest and raise their young. Consider investing in nesting boxes.



2 thoughts on “Bird Egg Identification Guide

  1. I thought this most interesting and helpful.
    A little editing required, as information is repeated, please see willow warbler and wren.
    Also importantly, the illustration of the jay seems to be, possibly, an American blue jay……
    Otherwise, this format is perfect for quick and enjoyable learning.

  2. Stanley, our young cat, brought home two collared dove eggs, one of which he brought through a cat flap, however it broke when he started playing with it in our hallway. The sound of Stanley playing with the egg was what brought us to investigate what activity he was engaged in. Whilst cleaning up the broken egg we saw Stanley on our lawn with a second egg, which we retrieved from him. The second egg was whole but had two puncture holes, presumably caused when Stanley was carrying it into our garden. Stanley is only 15 months old and came to us as an 8 week old feral rescue cat: Stanley is a prolific hunter. Thanks to this site we were able to identify from which bird species the egg originated.

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