"It could be the size, it could be speckling itself or the lack thereof, and it could be the color — beige versus robin blue," Hauber explains. All of this and more can be tested with fake eggs ...

To us, the bright red breast of a robin signals the start of spring. To a cowbird it screams ‘easy mark.’ Cowbirds are brood parasites, laying their eggs in other birds’ nests. Robins are ...

Paint them and use them as indoor or outdoor decor. Vivienne Wagner from The website V Spot turns plastic Easter eggs into faux robin's eggs. Vivienne Wagner from The V Spot uses the eggs as decor.

"It could be the size, it could be speckling itself or the lack thereof, and it could be the color — beige versus robin blue," Hauber explains. All of this and more can be tested with fake eggs ...