What Bird Lays Light Blue Speckled Eggs

Birds that are known to lay blue eggs are Dunnocks, House Finches, Red-Winged blackbirds, Robins, and Black Tinamous. If you find the blue speckled eggs then keep a watch over the bird's nest until the rare parent birds return home.

Which bird gives blue Colour eggs?

The bile pigment biliverdin is responsible for blue tones in bird eggs, including robin's eggs. The color of an eggshell is determined by these pigments as they are deposited as the shell is formed in the shell gland.